Maybe someone can chime in with the wingspan method of figuring out draw length !!

30" draw is pretty long.........heck I'm 6'03 and only shoot a 30" draw !
I would check that if I where you !

Most bows now a days have 10lbs of adjustment ! So if your down at 61 lbs you probably don't need to back it down anymore !

Lastly......weights have nothing to do with it ! You use muscles for archery that you never use for anything else ! One of my buddys was big on weightlifting a few years ago.....he's my height and build .....but a little thicker.....and a lot stronger ! I think he was bench pressing around 400 back when I let him shoot my bow ! He could only pull it back once and it was tough getting that one in ! The bow was on 72 lbs ! He couldn't believe it .........but like I said......it's muscles you never use for anything else !