I will be seining my pond on Sunday and hopefully will have some more insight on the effects of tilapia this year.
As far as catching them, I may have found the silver bullet for those who also feed pellets.
I took a couple of handfulls of feed that I pulverized with a mallet, added 1 egg, 1/4 cup of flour and then mashed while adding a small amount of water to make a thick tacky dough bait, play-doh consistency. I put a 3/8" ball on a small hook, no weight, no bobber and just cast it out. Doesn't float but works like a charm.