Rat, start with a high performance smooth short design, and THEN, its all in the mass weight man...
I totally get where you are coming from. I was a 'long' bow guy for a while, my main hunting bow was 68" and then I started shooting short bows with heavier risers. Its the key.
Don't lament a 62" Centaur. Try one with a Dark Matter riser. Having the extra mass weight in the riser (30% heavier than phenolic) makes it behave like a bow 6" longer IMHO. I agree the standard bows are featherlight and need a steady hand, but man Dark Matter just does the trick, ohh boy..
Same deal on my Elkheart, 56" but with Bow-bolt takedown and phenolic in the riser feels like a bigger bow and is smooth enough to get the job done. I have seen the f/d curves Gregg has plotted.
Try any Toelke bow in a 2pc, with Bow-bolt and phenolic riser, they also shoot superbly at shorter lengths.
Add a forward handle into the mix and its gets even better. Big Jim's Thunderchild for example doesn't have the mass of the other bows I mentioned, but the forward riser with swept back limbs is taken to the extreme so the stability is still there. I remember the first time I shot a TC in a draw weight I liked I was shaking my head how well it did for me with very little practice.
IMHO the Olympic comparison is a non-issue here. Are we taking 90 yard shots on game like Howard Hill anymore?
I gave up on longer bows like the 68" one I had largely because these heavier mass short bows just are SO much more enjoyable to hunt on the ground with in thick woods and swamps where I live.
To each his own. These bowyers out there are making hunting bows not target bows. At the end of the day everyone's biomechanics are different and your mileage may vary,
All I know is after trying a lot of shorties and LONG bows too in the last couple years, IMHO a bow like a 2pc Java Man Elkheart or a Dark Matter Centaur, or even a Big Jim Thunderchild to me are the pinnacle of the hunting stickbow.
The cool thing is there's some bowyer somewhere always working on the next best thing.
I love bows period, like women they come in all shapes and heights (lengths!) LOL