My brother and I both pulled a "Charlie Daniels" (getting your arm caught in the driveshaft of a farm implement), my brother before Charlie, and me after. Both of us broke our left arms, and are left handed.
As to my right arm, I know I tore something, I'm trying to get it to heal. However, I own my own business, and I'm the ONLY engine builder/shortblock machinist there. Needless to say, I can't take 6-8 weeks off without going out of business. It's getting better, it just takes a while. The bruise comes back if I get careless and over do it.
There are no laws here about let off, you just can't have a mechanical device to hold the string in the drawn position. My bow is a 35% letoff, being 20 years old. These days, 65% is more common, especially on the high draw weight bows. The only thing allowed with a mechanical hold are crossbows. You have to be disabled to use a crossbow here in archery season.
If it ain't healed by July, I'll skip bow season this year, because two months is the minimum I consider to be enough practice time. Archery season starts in September here.
If it doesn't heal in time, I'll just do more muzzleloading and revolver shooting. It will keep me out of one hunt I want to make though, the hunt at AEDC, the Arnold AFB area. There are some nice deer, and it is a 3 day hunt close to home with a nice camping area.