Back in the 60's and early 70's California I did a lot of novelty trail shoots, all put on by local clubs to finance their ranges. Competed against a lot of those Tamerlane. I don't recall any of them or other tournament bows being unduly loud or noisy. Every one was shooting aluminum then, I'd try a heavier arrow As I recall the racks of bows at the beer stands, only short hunting bows were braced higher than 8" Sorry can't help more than that, other that to repeat what a well known bowyer told me on measuring a recurve for a string.
Use string or seamstress tape. Lay bow across chair arms, Belly up (the side you see when shooting, just to be clear) Beginning at the nock follow the limb to the top of the curve, hold the tape there, go straight across to the top of the other curve, down to the nock. Subtract 3".