All bow pounds are not equal. I have no problem with 3-blade heads in the "hot" 41# recurve I've been shooting, but I would go with a 2-blade on a self bow. Whatever, it must cut to the tip for the best penetration. I've shot through more than one with a Delmar 3-blade and even Snuffers out of the 41# recurve. It tunes to 65-70# shafts cut to 29", with medium-weight heads. The stiffness of the arrow the bow tunes properly to is a better indicator of the energy it's putting out than the pounds it takes to pull it
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