I clean my ears twice a day, after bath, using q-tips. And I always clean my 'outer' ear with a wet tissue before I insert any IEMs. I don't know how deep the q-Jays goes into the ear, if you clean your ears frequently I think you won't have the earwax build-up problem. Unless you are producing a lot of earwax.
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So I'm wondering whether to try the next level up, looking for low maintenance, a precise & neutral response, a wider soundstage & better separation. From what I've read, the following look worth considering: Westone UM3x, Future Sonics Atrio, Sleek Audio SA6/7 (HQ wireless possibly being of interest).
I overlooked this part of your previous post. I have no experience with UM3X, Atrio, and SA6. I read people say UM3X is neutral, has good instrument separation, but a small soundstage. As for Atrio, I think it is more for bass-lover, both quantity and quality. I don't know much about SA6.
If you want neutral sounding phones, I think UM3X and EarSonics SM3 is a very good choice. People say SM3 has similar sound signature to UM3X, but with better sound quality. I have a pair of SM3, and they give me good soundstage, good imaging, good instrument separation, and they are very accurate in producing vocal.
This is an appreciation thread of SM3. SM3 is very tip-dependent, be sure to have a look on post #3 for more information on tips.
http://www.head-fi.org/forum/thread/485632/earsonics-sm3-appreciation-discussion-review-thread-aka-the-most-affordable-high-priced-universal-iem/0
However, SM3 has the most dissapointing build quality, at least for my pair:
http://www.head-fi.org/forum/thread/485632/earsonics-sm3-appreciation-discussion-review-thread-aka-the-most-affordable-high-priced-universal-iem/315#post_6639603
I always take good care of my IEMs and never abuse them, but SM3 is too weak in my opinion. You can however use cellotape to wrap the housing so that the plastic casing won't snape apart...
If you were to go for SM3, and seems that you have some more money to spend, I suggest making a pair of custom sleeves (from EarSonics as well) for SM3. The custom sleeves are made from hard acrylic, so I think maintanence should be easy.