i have planted high mountain lakes for years, using a chopper, and some of them have huge fish today. the biggest factor for the size of the planted fish seems to be the amount of feed available. some of the lakes have a species of fresh water shrimp in them and the trout get over 28" in these lakes. where feed is lacking they dont grow nearly as fast. also the number of fish planted per acre makes a difference. i had a friend that used to haul fry up into the olympics via a 10 gallon milk can on horses. ( back in the 40's)