Wanted to share my own experience after trying to fit a gatorskin on my newly laced 88mm carbon clincher. I always used to buy gatorskins off ebay without actually paying attention to the type of the tyre (will come to this in a moment). So I happily rushed to fit one of my existing new gator into my new wheel only to discover that there is NO F£"ING WAY THIS THING will go on (dont give me any of that HTFU sh^$t I used to do triathlons k?).
So what it comes down to is this: use the folding type (kevlar bead) not the wired bead. Makes little difference on the tyre (rolling resistance & puncture protection) and the folding one is more flexible on the beads. Didn't even use a lever with the folding one.
I hope this saves your thumbs (and in my case your fingernails)