Stumpy sliding dropouts

[HHL]

I'm curious about the long term reliability of the 2009 stumpy marathon vertical sliding dropouts. The bike itself has gotten good reviews, but I haven't seen commentary on the dropouts. It looks like they weren't around long, and I am wondering if there is a reason, other than adding a little weight.

[abarton]

i have been using these dropouts since 08 and have had to replaced the bolts this year due to them rounding out after three years of service. I have the bike setup single speed and these dropouts work great. I change gears frequently depending on the course. Due to the high torque spec specialized advises the bolts just finally rounded out.

[HHL]

Thanks, abarton. Maybe replacing them with some steel or ti might be the way to go. Or would that be too much for the dropout?