With 58 ft.lbs., I'd feel safe saying the choice is your's. It sounds like you could have both in your quiver if you wanted. On really windy days you could nock up a shockwave. I suppose you have new blades for the ones you have been practicing with don't you? I, for one trust shockwaves and you and I shoot right at the same KE.

Are your groups just as tight with both? It feels good to have different heads hitting the same and a well tuned bow doesn't it?