I know that this is one of those questions where someone can invariably say “It depends … on the wood, the tiller, the mass etc…”
So let’s just say you execute everything perfectly with great bow wood …. Does recurving a self bow gain you significant performance?
Or would heat treating a bow into a reflex deflex profile be more appropriate/ easier to execute?
I might as well throw my $0.02 in as well...
The biggest indicator of performance (in terms of energy storage, which is the potential performance) seems to be where the tips are in relation to the handle. The farther forward the tips, the more energy is stored. So, if you keep the tips in the same location how they get there doesn't seem to matter that much. Whether you reflex the whole limb or use recurve tips or an R/D profile the end result will be similar and will result in similar stresses in the bow. They won't be identical, but they will be all in the same ballpark.
What recurves mostly do is provide a smoother draw with less stacking, which can be a significant benefit all on its own. A lot of people also like the look of recurves and there is nothing wrong with caring about the aesthetics of your bow design as well as the performance.
Mark