the serato HID jump issue was clearly owned up to by serato and they said they were fixing it, if it was a spring issue where the spings are a tiny bit too short and touch the platter sensors on heavy bass, then this would happen even when not using serato so i find that hard to believe that stretching the springs fixes this HID issue. Like I put in the other thread you commented on:
this is right from Sam from serato on 3/6/2012
We haven't forgotten about this. In order for these issues to be resolved and to be solid for the future, there is a large rewrite of existing code that needs to happen. Unfortunately this hasn't been a priority and therefore with the limited development resources we have, we have been unable to commit to this as of yet.
It will be fixed in the long run, but it's not the kind of fix that will be able to just be added into a small point release. It's a larger architectural issue that will take some time sorry.
As much as I would like to give you guys more information at this stage I can't sorry. We are aware of this problem though and are working to resolve it.
Let me know if you have further questions.
Sam.