I usually only purchase HG's for the same issues that you name. Even with the HG's, I still see some bending of my blades (yes I am that brutal). It is not as obvious to me when I swing my 32" HG as I do with my 36" HG. If the same principle holds, I think that the shorter the blade, the less likely you will see the bending. You have less surface area to catch air and cause drag.
Thanks for answering. This was my guess but I wanted to get other's inputs before I went and cut my blade down or something. I would purchase a HG, but it's for my Dark Prophecy, and I hear that the blade can be alittle heavy for the particular blade and not as we'll maneuverable