It may be worth using Double-Edge (whatever it got renamed to; Overskill?) on attacking sets, as it hits most Steels for the same damage Stone Spike would.
You do need Speed investment to outrun fast stuff at +2; I forget what the exact values are (and can't check easily because my own sets have extra creep I forgot about >_>) but they'll depend on whether you're playing at level 50 or 100, how much you value smacking Speed Aya, and whatever scarfers become popular.