It's been a while since I been on this forum, but at the same time, I have not been on the water as much as I'd like to.
I just started fishing more deep water this year as well and I've been doing pretty well. Fishing points, ledges, and outside weed lines. Caught fish in 10-20ft of water. I've been using 1/4oz shaky heads with a zoom finesse worm, 1/2oz jigs, and t-rigged yum swimming dinger or on 1/2oz bullet weight. Casting towards ledges or points and working it back, also pitching at outside weed lines. Depending on water clarity, black/blue or junebug for dirtier water and green pumpkin or watermelon for clearer water.
Hopefully that helps.