That's a tough one. I've tried IEMs from $100 Shures to $400 Ultimate Ears TripleFi 10s (love'em) and all I've used transmit bumps. I'd contact
HeadRoom and ask for suggestions. I've done business with them several times over the past 10 years and found their reviews very honest. Have you considered over the ear cans like Grado's SR60 or SR80?
I called Headroom and they commented that the main problem is both of the earbuds I currently use are in the ear canal style earbuds, so were especially bad about transmitting cord noise.
I'll see if I can find the old buds that came with the unit as a test and see how they compare for cord noise.
I don't like "on the ear" headphones because GA is hot most of the year and putting thermal insulation (foam) on my ears doesn't work well.
As a FYI for others Headroom recommended Yuin PK2 for a standard ear bud and as a smaller on the ear headphone, the Sennheiser PX 100-2 or 200-2.
The difference between these two models is that the 100-2 is open on the back and allows most sounds to get in, while the 200-2 is sealed so blocks more of the ambient sound.
GlockRocks,
Those JVC buds look like the seat in the ear canal. Do you not have any cord noise issues with them?
Thanks,
Kurt