I have more than 300 hours on Goodyear Flight Custom 3 tires, rotating the mains twice each year.  Don't have a count on landings, but suffice it to say, numerous.  There is no noticeable outboard wear.  The original tires received with our kit in 1992 lasted approximately 20 hours ( first flew in 1999 so assumed that the "old rubber" was the problem.  Very happy with this set and would definitely use them again.  BTW, Flight Custom 2 tires were used for approximately 100 hours after original tires went bald (was working out the kinks in alignment and getting shims built), and after alignment issue resolved, put on the Flight Custom 3s. 

Pat Brunner

N98PB

IVP - 430+ and still grinning