Giving into or suppressing leg quivers?

I’m making some good progress in my sessions with my Helix Trident. The position I’ve been using lately is laying on my back, pillow under butt, with knees bent, and feet flat on my bed.

I start to get really relaxed, not really using PC muscles, and just letting the Aneros do it’s thing. At this point my legs will start to have bouts of involuntary quivering for a few seconds. The length of the quivering increases and ramps up in intensity.

Should I be trying to suppress these quivers and try to keep my whole body relaxed? Or should I just give in and let my legs shake wildly in this knees bent position?

I’ve left my legs flat out on my bed before and don’t quiver nearly as much, but I think knees bent lets the Aneros hit my prostate better.