I bought a super mag 48 (about a "72") on the auction site. Drew it back to about 28 or so.... sounded like a bomb going off. Found the coin about a year later sweeping. The riser had let go starting at the stabilizer bushing. So I, feeling challenged, glued it back together, put on a motorcycle helmet, heavy leather duster and heavy gloves and shot it three or four times and it held. So I took off all the gear and shot it again and it let go.. I believe god watches over all truly innocent idiots.
It drew blood both times. I have a newer "76" Super mag that was well cared for and it shoots fine.
I also had a early Tamerlane de-laminate. That was a bummer, it was a 45lb with a usable shelf. Now I just have a chunk of Brazilian Rosewood, although it might be able to make a Bear takedown riser out of it, or have it re-limbed.
I also knotted a string once to shorten it... don't do that one either. It also sounded like a bomb, but the Bear 70lb #3 limb with an A riser held fine. yep that was really stupid.
One thing to keep in mind when choosing a bow for a long draw is it is not all length. The riser design is important, like whether the limbs mount on the belly or the back of the riser and how much deflex there is at the riser. Some of the short bows have the limbs coming out the riser at an angle that looks like it is drawn already (Super Mag 48). This allows them to be drawn further then if there coming out of the riser straight up and down.
Just something to consider as a lot of these events are long draws.
You can put a set of short ILF limbs on a 25" riser and have a bow that is, I think, 66" long and still best for a short draw, under 28". Longer ILF risers don't have much deflex at all it seems.