Re: Heretical post here - beware
I like nymph fishing. 99.9% of my fishing is in lakes. I do a lot of bait fishing but when I compare the two, my fishing technique is the same.
As for detecting the fish biting, I guess the brook trout in my region are voracious because they hook themselves when nymph fishing.
Yes, most of my fly fishing is with dry flies because there are always trout activity at the surface. The only lakes where surface activity is slow are the lakes that have minnows. I use streamers when fishing in these lakes.