Also, the more whip-tillered the bow is, the more efficient it becomes (the reason here being lower tip mass)
Although the tip area with the steep taper is somewhat lighter, I dont think those FPS are attainable because the max strains in bow 9 are 73% higher than bow 4
Of course not! Those are only theoretical values within given boundaries; there is no set, for example. When modelling bows made from natural materials, it is important to interpret the results correctly – what is realistic and what is not. This is where practical experience in making natural-material bows becomes essential. You can learn a lot from theory, but you should not believe everything.