I'm thinking about buying some Maxxis Aspen tires to put on a new set of Industry Nine wheels (Stan's 355 rims). So far everything I've seen on the forum has been pretty positive. They seem like the ideal tire for my type of riding/racing (varied terrain but predominantly Northern California rolling hardpack). Before I commit to buy I was curious if anybody has had problems converting them to tubeless. Also curious if anybody has had torn sidewall problems with them.