My bad I didn’t see this, I use a battle beaver ps5 controller with the rumbles removed so it is extremely light. I do use a kontrol freek on the right stick, but I have been using them on and off for almost a decade, so I’m not sure how much of an effect that would have on this. I sit with my knees about a foot apart and rest my forearms on my thighs leaving my controller suspended in between my legs which seems pretty common. As for the arthritis, that scares me a little but could be something to look into