...another reason to run Hoosiers, Kumhos are a serious pia to mount [:P]
When I used to do 245 V710's on 18X8" rims, the easiest way to get it done was to change tires on a warm day, let the tires sit in the sun for awhile, use lots of soap/lube and sometimes use a ratcheting motorcycle tie down, as well...getting a 285 A6 on the same rim, in comparison, was a total piece of cake. The K sidewall is just a beotch...
wow, i'd hate to see the kumhos...my guy (who preps a lot of autoX cars and road races a GT3 Cup) busted his nose mounting my 285 A6s when the lever bar slipped and smacked him in the face. [:$] he mentioned that they go on 10" wheels a lot easier. i owe him a case of beer.
I flipped all four 295/30-18 A6's on my car's 8.5" rims this weekend in about 40 minutes, max...they were easy enough to start with, but once they've been run on, they're super easy. A couple of friends and me went partners on a Corghi tire machine 3 years ago (bought it pretty cheap from a tire shop going out of business) and the thing is fantastic...having the right tool for the job helps.
But, the Kumhos were just never easy. Carter Thompson has a guy who is so good, he could actually get the 285 V710 on an 8" rim...that's something I would have paid money to see [:D]