I am wanting to get my son a harder hitting bow. He is currently shooting a fuse which maxs out at 20lbs. and it doesn't hit very hard at all. I'm wanting to get him a bow that can be adjusted as he grows and he could use when he is a grown man. I have been told that the mission bows are good and the PSE Discovery is a good choice. He is currently 11 years old and he can pull about 20lbs currently. I appreciate any info.