heh, I know what you mean TI.
When I got to goal, and went out as pillion on the back of my hubby's bike is when I noticed it big time.
I used to be able to ride for hours, comfortably. My padding, PLUS the padding of my leathers, and the padded seat n backrest - comfy as a clam.
After LL, we went out. We got about 15 minutes down the road, and I told him "you need a new seat!! This one HURTS!!!"
I notice it on hard seats too. Can;t sit nearly as long as I used too!!
S'all good.