Aless – Sitting vs On Back

I’m practicing Aless. Any experiences of sitting vs being on your back? For some reason, it feels natural when I cross my legs sitting to just get sensations. But when I’m on my back struggle a little bit. I’m sitting on a stool and crossing my legs, just flexing the PC (I think) is giving me sensations.

However, in the past, my stronger orgasms came from being on my back. I feel like it’s because it’s easier to relax lying down than sitting. Not sure if I’m doing something different?