My last reply got deleted. Not quite sure if you want my input or not.
I can raise or lower the seat height for tall or shorter riders which is something which is easily done.
The reason I do not like Corbin is their seats are hard, which is going to be very uncomfortable for you for longer rides.
As for the grippiness of the seat, it depends upon the vinyl. I usually recommend a grabber vinyl which keeps you in place better which means less input into the bike and less fatigue. The slope is easy for me to modify but limited based on the shape of the pan.
HOpe that helps, if not then feel free to delete this post too.
Jaycee #600 MotorcycleUpholstery.com