Hey, do not feel bad about bouncing the bottom with flies. Here is how I look at it.
As the optimum is hooking fish on the swing without a tip with a spey, it only happens occationally in low water.
2nd is using a tip…happens a bit more often and 42 and up is the optimum water temp.
In the 30 degree marks, and with a short time to fish and long drives involved, hey we all want to catch fish. So I carry nymphs, eggs streamers ect and use bottom bounce, indicator and swing streamer techniques. No shame in it.