The thing is, by using Sheldon's method, taking your time a bit, you can assure that it is well aligned, maybe better than new. For me, it's worth that little bit of extra effort, but to each their own. We've got some frame alignment tools here at the shop, and I've certainly seen frames that had been cold set where only one side of the rear triangle bent, taking the frame out of alignment a bit. Again, to each their own, but I think it's worth following Sheldon's instructions.