sure you can butter em. just takes a little more effort than say...invaders. depends what size they are, how big you are, and where you have em mounted. if i remember correctly, Bibby did some nasty nose/tail butters off of jumps in skimatic?
the older they are the softer they are. my first gens were real easy to butter. this years and last years are way stiff. I think the new extremes are too.
yea they can butter. I have had them for the past 3 years different pairs but they butter. Takes a little more strength and may i say skill but they are butterable