1. I can verify that increasing those values does, in fact, help for those of us who try to use high cadences.
2. I was also informed by my dealer that making those changes actually voided my warranty. I checked the text of the Bionx warranty, and he is correct.
Those settings help, but use them at your own risk. Like some others, I've had occasional issues with my Bionx system locking up. I haven't been systematic enough about it yet to verify whether it has anything to do with those settings, so I haven't yet proven otherwise.
Charlie
http://electiccyclist.com