thats a short jump you can also get some physical therapy stretch bands or medical tubing and draw it back like a bow add five pounds now just bump it to 55 and shoot for two months couple days a week till its comfortable then go 5 more by next season you can be to 65 if you want with lots of range time under your belt.
this will also give you a chance to learn your bow better bump it and dont change the sites till you can shoot fifty arrows with out being wobbly. see how much a 5 lb bump makes your sites react and your arrows flex. its interesting to see what poundage and new strings different sites or better arrows can change a bunch on your bow subtle to most but to the familiar worlds of difference.
I just started taking a TRX class, and it's great. It hits your core and lots of back, shoulder stuff that you can adjust weight by just adjusting your angle.
