Hello Spyke and welcome to
Maybe a idea to have your original seat reprofiled would sort your comfort issue.
I'm on my 3rd Tenere and do find the seat and ride position very good.
Touratech do 3 different seats not cheap though.
http://shop.touratech.co.uk/vehicle-...t_biketype=908
Have a search on the site there are some good mods you can do to make the Ten ride lots better.
The best ones for the Tenere are Kev's 02 Controller and fuel mod along with Stages 1,2 and 3 Dna filters