seantOH, I constructed a feeding ring a number of years ago and also added an old window screen about 4' below the ring to catch food so it didn't drop all the way to the lake bottom. I don't have any data on whether it's better or more detremental to a pond tho.....
If you are absolutely certain of your fish id skills, then go for it! Try and get some big BG males in ASAP, and you still have a couple 3 weeks for the female BG.
The other number to remember is that it takes roughly 10# of forage fish to put 1# of weight on ONE LMB.