Which Armguard
#2
The one that suits you best , of course . 
I have two , an Allen from Wally World in camo for hunting , and a different cheapo brand for the backyard . Both were inexpensive and work well . If it blocks string slap and doesn't do things that annoy me then it works as well as any other and the only real difference is price and appearance. I shoot a recurve .

I have two , an Allen from Wally World in camo for hunting , and a different cheapo brand for the backyard . Both were inexpensive and work well . If it blocks string slap and doesn't do things that annoy me then it works as well as any other and the only real difference is price and appearance. I shoot a recurve .
#3
It all depends on your setup. If you have your hand in the bow correctly and the drawlength optimized for you then you shouldn't even need one till you have to put on heavy clthes for cold weather. That being said I'll add that I haven't needed one for about 25 years now, even with a heavy coat on.



