Since I can't catch fish in a bathtub and can't give advice on something I know....only on the things I've read, you will need to adapt to the clear water. Lighter tackle (line/jigs) is one thing to do. Those who know say that clear water will cause them to spawn deeper...so they won't come to the bank. One of the problems I have when fishing deep is maintaining contact with my bait. Good sensitive line, such as braid, can help and maybe more weight would help keep the line going straight down. It could be that you're getting bites and you just aren't feeling them because with lots of line out you may not feel or see a bite. Lots of people fish those deep brushpiles at Pomme and I think the locations are pretty well known. I keep telling myself that the enjoyment comes more from getting out there and not in catching fish every time.....then I call myself a liar
Keep after them and good luck.