Antler characteristics are genetic therefore, spikes are inferior deer. Will they always be spikes? No. Can they achieve decent antlers? Yes. On the Average spike deer will have poorer antler growth as adults than those deer with forked antlers (assuming equal nutrition). Should you shoot spikes? Itdepends on what your management goal is. If you are aiming toward trophy bucks I say yes, If you just want some decent deer than no. But if you are going to shoot him when he is a 2 1/2 year old 6 point or a 3 1/2 year old 8 point you might as well shoot him as a spike.

Look up the Texas Parks and Wildlife spike study done on the Kerr WMA. There are many places on the net that have it. Its a good read.