You might want to check on the Sony MDR EX-1000. They are much easier to fit as they are definitely smaller. They have a magnesium body that is a lot more stable than the H3's plastic body. And they have a very special dynamic driver that is not the same as the bass driver of the H3 even though the specs are similar. The EX-1000 is much more refined across the board and the treble are very fast and sparkly.
The EX1000 have a more laid back signature and the dynamic driver is way better than that in the XBA-H3. Problem is they have big vents so isolation is really lacking even if you do get a proper seal with the tips. You need to use them in a quiet environment to get the best out of them. When you do you'll get a really large staging with sweet vocals in a laid back way. Bass has great impact with the EX1000, you really feel the impact.