Lots of discussion of the design you're considering in the latest (Volume IV) Traditional Bowyer's Bible. If I remember correctly, leaving the limbs wider through the first third or so from the fadeouts, and then really tapering in an eifel tower shap to the tip, causes the bow's limbs to bend more right off of the riser/fadeouts while the outer 1/3 of the limbs remain fairly static/unbending. Looks rather ugly IMO, but apparently ups efficiency by about 10%. That's a bunch for a selfbow.