Short rider question.

Hey friends, I’m 5’5, 29’ inseam, and currently have a 22’ RS660, and is on my tippy toes or ball of my feet on one leg. I've been riding it for two years and want to upgrade to an RSV4. The only issue is my height. I've sat on a 23’ R1, which feels the same as my RS660. I was pretty shocked and asked the guy if he knew how the seat height compared to the RSV4, and he said it was smaller than the R1. I guess I'm just kinda confused on whether or not this info is accurate. I've sat on multiple 1000s (ZX10R, CBR1000RR, GSX-R1000R), and they all feel smaller or I can reach the ground better than the RS660. Does anyone know how both bikes compare?

Thank you!