My wife has a driving habit that I can't seem to break. She rests her hand on the shifter while driving.
She's had 6 BMW's over the last 20+ years and none of them ever had transmission issues. 2 of them had over 150K miles on them.
Her hand weights A LOT MORE than a shifter knob...
Chk out this article:
https://www.raceseng.com/blog/genera...n-the-shifter/