I'm looking at getting a new wheelset. Formula hubs with either 28-hole Velocity arrowhead rims, or 32-hole Velocity fusion rims. Do the extra spokes add that much more strength? I only weigh about 185, but commute and carry a lot of weight with me sometimes. I also will be riding on a lot of hills on non-commute days so weight is sort of a concern. The Fusion rims look like a good medium point between the arrowheads and the deep v's. Any opinions? (by the way, the 28-hole arrowheads are 15 bucks cheaper)