I've heard the SE425, SE535, SRH-840 and SRH-940.
I recommend you only consider SE425 and SRH-940.
Which one you'll prefer is more of a preferrence of IEM sound versus headphone sound, they are both extremely good in their own respects, I think in a fair competition of sound the SRH-940 will most likely win though, with more true to life sounding sub-bass, a further extended high-end, more focused and realistic vocals, better layering, etc...
The SE425 on the other hand will sound more intimate, have more specific and increased imaging, and be less fatiguing (not quite as sharp as the 940, probably good for a stage performer, so they don't get tired of the 425 during long sessions, you know, you don't want a treblehead IEM up there on stage, shrieking distortion at you all night lol.
These are just my theories, also I never really compare headphones and IEM's, it's not really fair, since they offer a different experience, however I do recall listening to the SRH-940 after I heard the EX1000 and I was very impressed with the SRH-940, only had a 10 minute session though, will revisit it soon.
P.S. You can also check with user "MacedonianHero", since he thinks the SE535 and SRH-840 are better.
Interesting POV Kiteki. I sadly haven't heard the SE535 - but I owned and spent extensive time with the SE425, SRH840 and SRH940. I also owned the DT880 (recently sold) and now own the HD600. From the first couple of pages of this thread, I get the feeling that although the title says "analytical", the general requirement so far has been a balanced or neutral signature.
All in all, I'd totally agree with your thoughts on the SE425 (although mids are a little forward), and also the SRH840 (despite the mid bass hump). Both are generally balanced. But I just couldn't call the SRH940 balanced. To me it is overly warm, too geared toward the upper mids and highs, and the missing mid bass made it one of the least balanced cans I'd heard. It would be like calling a grado balanced/neutral.
Detailed - for sure. Analytical/neutral - not to me.