Im building a batch of necks right now, two 7 strings, and 2 six strings. They are five piece necks, Walnut with maple stringers. So I am probably going to reinforce the 7s with carbon rods (would anyone suggest doing so to the 6s?)... I see that Stewmac has the 18" rods prefabbed, but has anyone here bought any elsewhere? I am looking at Outwater and McMaster for the material...the former having either aluminum or acrylic rods, and the latter having long pieces, about 48" of carbon fiber. I figure it would be more cost effective to buy that and cut it down, but I hear its a real pain to cut the stuff. What have you done for this process? Also, has anyone here have experience with an extended neck pocket? If so, what is your standard depth for that? Im considering a 1 1/4 pocket...too deep?