I built a 60" takedown recurve according to plans,it turned out ok but the dimensions of the riser seam a bit chunky.The width of the riser if messured accross the shelf seems to wide,and although I eventualy cut it deeper,if you go by their pattern the depth of the shelf dos'ent even go to the center line of the string(it seems like it should go to the centerline plus half the arrow shaft diameter).So my question is how much do you think I could safely modifythese dimensions? I'm looking to build anyher bow as a winter project.Tim