Ideally you want to train a curve with a bit of flexibility. 90% erect will give you the erection density necessary while still allowing you to attack the curve with good flexibility. 100% erect works great when training for girth, width, etc. but you want some slight flexibility when correcting or adding a curve.
for removing a curve.
at about 90% hold at the base with one hand and just below the glans with the other and bending it for a hold of about 30 seconds?
Is it just me or is curing an upward curve is quite a bit different from the common curve to the left? (whats up with that anyway, how come you don't hear of curves to the right?)
I'm not sure on this one, but I think most guys tend to keep their penis on the left side of their pants for whatever reason. That may have something to do with it. I keep mine on the right, but I don't have a curve either way except when flaccid it kinda hangs a little to the right.
Its good to have your penis on the right! The bulge shows more because of the zipper being in the way on the left side.