I cant help you on the comfort part. I think it
looks real comfortable. I looked and inquired on that seat @I.O. Port racing supplies. He(NASA scrutineer) said I should not get the intermediate need more protection because of the fast heavy car.And to get the Kirkey deluxe Pro version to be real safe.
That seat you linked to at Kirkey does not come with a cover. Can you get a cover there for under $100.
If not and you are set on getting the intermediate then I.O. Port sells that seat for $320+
with a cover.
I am set on getting the Pro seat at Safecraft in a Package Deal #1 .Comes w/ Fire suppression system nozzles and lines 5lb. bottle,window net,seat mount brackets and Pro road race seat & cover. I think its a great price. Here
http://www.safecraft.com/Mpackage.asp Tony