ORIGINAL: LBR
You may very well be able to build up to the heavier bow, but in the process it's very easy to develop bad habits,oot as many arrows, you won't develop your accuracy as quickly
he can always practice drawing the bow and holding steady without shooting....that way he builds muscles and improves steadyness without developing those bad habits....i recomend newcomers do this with their bows for a number of days so they can get the feel of how the bow draws, their anchor, their grip, left arm position, bow cant, stance, head position, and right arm position...and try to visualize themselvesstanding there holdingperfect form.regardless of the bows weight.
i didnt do this starting out and wish i would have. it would have saved me some troubles down the road. but i do it now before i practice everytime for about 5-10 minutes.