Every LD shaft I have ever had is still straight. I've had a case that had a spare LD shaft and a spare rock maple shaft in it. Left it in the car on accident on a 100+ degree day on accident when the humidity was rockin. The LD shaft is still straight.... the maple shaft, not so much. Looks like a boomerang now. So, I think that LD shafts are much more resistant to warpage.