Fast forward to yesterday, I saw the svelte used compound on the wall of a shop and I looked at the tags. 28" (I'm 27" or so) draw, 40 lbs... nice.
I'm 67 and in pretty good shape but I could NOT draw that thing at all!
I figured time and age took their toll, but I researched the bow and found it adjustable 40-65 lbs. and 22" to 29". So, "maybe" the PO goosed it up to max and I'm not as weak as I thought? I'm thinking it's a combination of the two

Anyway, I found the single arm dumbbell exercise and I'm doing reps with a 30 lb battery for my right arm, and I do 30 push ups daily which may help keep my left arm from wobbling at full draw. Since I'm lefty and shoot right handed my "strong" left arm should't need much more help.
So, beside the exercises I'm doing, are there any other things I can do to get my upper body toned up?