After about 10 years on Raichle AF 600's with blue bts, I bought a pair of UPZ 10's, the grey Virus edition. The Raichle's were getting really soft. Tried on the head's, but they were too wide. Last spring I tried the UPZ's with the factory liner-not good. Too much heel lift, shin bang and presure points. Over the summer I cooked my old Raichle themofit liners (already packed out) and put them in. Have ridden on them 5 days this fall with no pain and great performance. I was having some issues with my heelside turns with the old boots. Heelside turns are good now. Like DT, I visited my friend Bola at All Board Sports in Boulder. Boots really need to be tried on before purchase.