if you start those clones off rooted in july you could get much more than 60g try about 100-150g's. cloning is a hard process for first timers though. Requires alot of patience and care. definatly read everything you can about it. I started a clone last year and got about a half pound wet of one plant so...i think it dryed to around 4 ounces which is good for a july plant. It actually naturally topped itself (tiptop just shriveled up)so the yeild may have been better.