These VSD1 LEs are indeed tricky hmmm, so why did i point to the Nutman's review of the Cardas??? This was the response he posted when i asked him to compare the similarities and capabilities of the JVC FXZ200s to the Cardas:
http://www.head-fi.org/t/586909/the-discovery-thread-monster-gratitudes-kef-m200-pg835-philips-fidelio-s2-pg-724/15930#post_9927344
His comparison made me realized something regarding these VSD1 LEs. When compared to the VSD1 Classics, maybe even the gr07 BEs these LEs does not seem to have a cap to their sound as well. What i mean by this is that these VSD1 LEs, possibly due to their higher impedance and "old man tuning" is able to scale much more beautifully with better sources. So what is the big dealios about this since i previously stated that these VSD1 LEs without Jazz preset EQ (which boosted the bass and treble regions) sounded boring as hell as the result of the rolled off polite treble and rounder bass??? Burn-in my friend, burn-in.
My VSD1 LEs has been on continuous burn-in with fast bass heavy tracks since they arrived. The 1st couple of days there were no changes and i have documented it here, but last night there was a break through. What i heard last night was EXACTLY what i had desired these VSD1 LEs to changed into ever since my initial listen.
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Yes these VSD1 LEs no doubt has that classic VSonic house sound/ tuning, BUT they sound vastly different in presentation when compared to the VSD1 Classics and gr07 BEs. This is why these LEs are tricky, cuz initially there was very little texture or extension to their sound esp. in their bass end as well as the rolled off polite treble (that was the reason why i said that their bass was more "round" and not as tight/deep or well textured when compared to VSD1 Classics/ gr07 BEs).
I lovingly coined the signature of these VDS1 LE as having an "old man sound" cuz of the disappointing treble and lackluster bass. But as the result of burning these in for couple of days straight that "boring old man sound" has turned into big ol' mean beast that is WIDE awake!!! O.O
This was how the VSD1 LEs sounded like during my initial listening. Let me illustrate for ya'll.

... lots of good qualities esp. the big/bold/full out of your head sound with a very lush mids, but the overly laid back treble and bass makes for a very disengaged presentation. This makes the sound soooo boring cuz it's trying to avoid the matter at hand, which also makes the listener lose interest in the audio spectacle.
This is the VSD1 LEs after a good amount of high volume fast bass heavy burn-in.

... the lackluster "round" bass end has gained more weight/ texture and punch as well as speed, this has given these VSD1 LE a second wind to do battle. Clarity and headroom has also increased giving them more 3Dness/ awareness to finally focus in for the final blow. This combined with slightly increased extension in the treble makes these VDS1 LE a deadly heavy weight sonic champion. The old man tuning on these is a deadly sleeper, once awaken WATCH OUT!!!
Sonic Champ??? Oh yes i did.
These VSD1 LEs has best the VSD1 Classics for me due all the subtle but noticeable changes stated above as the result of burn-in. Combined with their scalability (better sound as the result of quality sources) along with their malleability (responds very to simple EQs) makes these VSD1 LEs much more versatile and refined.
Here's my reasoning behind this revelation as i have stated before:
Are these VSD1 LEs "neutral" as i have stated before??? NOPE!!! The bass end has come out to play in spades, as i have stated above there is more weight, texture, more punch, faster attack therefore the "rounder" sense of the lows prior to burn-in is almost gone. The bass end almost has this speaker-like rumble quality to them that i have never detected in the VDS1 Classics or the gr07 BEs. This is a bassy IEM no doubt but it doesn't bleed nor interfere with the rest of the sonic spectrum.
The bass of these VDS1 LEs provides a pretty solid foundation for the rest of the sound to build upon. This is where big soundstage takes over and further advances their sonic presentation. The big headroom of these VSD1 LE effortlessly and effectively envelops the lush forward mids and polite treble giving them an extremely big/full/ bold spacious yet very well layered sound. Much more so than the VSD1 Classics and gr07 BEs. A common criticism of the gr07s is that they are not the most 3D out there, this is probably due to their more neutral more "flat" sound, these VDS1 LEs on the other hand seems to address the lack of 3Dness of the older VSonic lineup, though my KEF M200 are still tops in 3Dness outta' all the gears i have heard so far.
So does these VSD1 LEs still remind of the Apple earpods as i have stated before??? Yes and no, yes in that before burn-in they share a very similar sonic presentation (Big soundstage, with a pretty bold/full sound and kinda boxy/ roundish sounding bass). I am happy to say now that after a good about of burn-in the answer is a resounding NO, cuz these VSD1 LEs has left the earpods in the dust on ALL accounts. Maybe the polite treble is the only technical similarity that the earpods are on par with these VDS1 LEs if that.
Not only is the sound of these VSD1 LEs MUCH more bold/full/big compared to the VSD1 Classics it is also more 3D as well due to it's increased headroom/ stage. The less revealing/ picky nature of these VSD1 LEs seals the deal for me cuz crappy recorded pop music never sounded so good to me than with these VSD1 LEs.
So in essence these VSD1 LE are like the Cardas without a cap to their limits/ sound and would scale amazingly well as your sources improve, while the VSD1 Classics has a capped sound and is limited. That's it for now, this was a revelation even for me after burning these in for these couple of days straight.
Scalability/ malleability baby is what these VSD1 LEs be!!!