My guess is that we're not hearing the whole story here.
Enough bands will split a wing in half in a hard dive before it simply seperates from the fuse.
The fuse of that plane prob doesn't weigh more than 3 pounds.
The G forces of that (or any) dive will NOT break 6 bands per side.
So put six #64 bands per side and dive to your hearts content.
The wing might slap back but your not gonna bust em.