I do on my Velocity rims. My first set had wire beads and very difficult to get on the rims, so I bought a set of folding Stelvios with the flexable kevlar bead, I thought these would be easier, WRONG!!
I've changed so many tyres in my time that I've lost count, but these Stelvios are the worst I've ever had, I tried the dishwashing detergent trick...no good, I've yelled at them....they don't listen. I've even used the tyre levers to force them on the front rim, that worked, but when I tried that on the rear I pinched the tube....I'm about to give up and try another brand because I'm building up a R20 with a Sachs 3x7 hub as a tourer, so I need a tyre that will be reasonably easy to deal with when I'm away.
Has anyone tried either 451 KENDA KWEST or 451 Primo Comets?