dont know much about 64 but 61 will have a few kids that are pretty darn good. my son wrestled your son at the take down tournament in chapparal and you son won pretty easily. hope to maybe see them wrestle again but my son will be at 58 the rest of the year due to him weighing in at 56 and 57 every week. we put him at 61 in maize and mulvane just to wrestle some different kids. good luck to your son. would be a good match to watch him and hartley from haysville. both strong kids.