I got Gixxer 1000 as well so can talk it from experience. Busa's standard seat after Gixxer will feel like a sofa after bar stool Having said that there is still a room for improvement, and few club members have gone to Big Kev for a seat mode to make it even better. I think standard seat is OK for 5 hours no problem - that's the longest of my experience, but some guys did way more than that perhaps even double without getting bleedy hemorroids. So it depends on your riding really.
There is mine by my local guy.
There is mine by my local guy.
"It is not a shame to not know, the shame is to not know and not to ask"