Carbon Force Black Mamba Arrow Question

[Matabele]

Hi all,

According to the Carbon Force info "They were designed for African big game, wild boar, and higher poundage bows"....but they are only offered in one spine size, 400. So how can they can be suitable for heavy gear...is there an insert system or something Im missing? They look good from a durability stand point.

Anyone with more info?

Thanks!

[Hot Hap]

ttt

[GG]

They come with weight tubes. A local archery shop told me that they were what I needed for a 52 LB. recurve a few years ago. He was way wrong. Way too stiff. He exchanged them for some 300's.

[Matabele]

Anyone know what these shafts static spine out at?