Are spikes bugged?

[-Xod-]

I have not been able to create spikes for my thrown weapon using the same steps as making arrows and such.

[-Xod-]

nm..I was trying AP's and frog crotch. It appears you can't make spikes in either of those formats. I did notice the 250 wield on greaters which seemed odd since no other greaters require a wield and even the deadlies (of other missile type ammo) only require 230.