I purchased the Triple. Fi's through last years deal for 99$ or so.
Since then I had to take three steps of changes to achieve a level where I pretty much can enjoy them when I need to.
1. Removing the stock cable, throwing it as far as away as possible, hoping never to see it again... Then replacing it with a silver cable that fitwise gives me a more comfortable experience.
2. Using the Meelectronics "balanced double flangers" because they gave me the best fit compared to at least hundreds of different of tips.
3. Amping it with a relative transparent amp like the Headsix that doesn't boost the the lower frequencies, just my choice.
4. Using the Triple's primarily listening to tracks/albums where I experience they perform at their best.
I can't say which of these single factors was the most responsible to improve my experience, but it did result in a better overall balance, meaning less recessed mids and so much more comfortable to wear.
Regarding the UE700. I have a pair of these as well, very decent, certainly more V/U shaped in signature with sibilance added if not used with the right tips, and IMO nowhere near the triple's performance.