At this point, you have to closely discriminate the actual noise produced by switching tracks and the background noise in the tracks itself. I got a couple of gotchas myself but it turns out it's the noise coming from the track.
At worst, I only get a quick and soft click when switching tracks at the beginning. But not the noise that last a second or longer like what I can easily hear before. I still have not heard the noise while listening to a long playlist or album.
When I test switching tracks in this case I press the prev or fwd button once or twice . In this scenario I have not encounter any noise yet and imo is the best representation of a normal usage.
Also, if you are going to press the prev or fwd button in a very quick succession you are repeatedly forcing rockbox to dump and fill the buffer which increases the chance of hearing a noise. Still not as loud nor last as long as can be heared before.
If you are using a c/iem, a slight movement of your jaw can produce a similar effect or noise so you should be aware of it as well.
Edited by headwhacker - 7/28/14 at 6:15pm