First off I dont think managing a 3/4 acre pond for trophy bass is the best idea. you will only have a couple of big fish.

Dave,

I use adult bass at much lower rates depending on the situation. I usually dont stock any bass under 12 inches. 12-15 inch bass are over abundant around here. of course their relative weight is around 80 %. to give you some idea, i shocked one of the lakes I manage about a month ago. we sampled 158 bass - total weight 265 pounds. total time on the shock box = 2 hours. I'll usually stock around 12 bass per acre if the pond is badly overcrowded with bream. I like to stock bass 15 inches and over that way I can cull the bass under 15 for the next couple of years. makes it very easy to tell which fish were spawned in. Stocking adult bass is tricky business and will create a stunted bass population in a hurry if you are not careful.

I have no idea what stocking rates are in PA. I would assume they are completly different than here. If it were here I would probably start with 10 adult bass and make sure they were from different lakes (genetics) give it a few months and see how it looks. If large bass is what you desire adding lots of bass is not a good idea.