I have had success with long leaders and slighlty weighted (barely weighted...) october caddis nymphs. I also have had success with waked flies....at least getting them to rise to the presentation.

I think the more subtle and natural the presentation, the more likely to get a "dour" fish to strike.

If I fished bait, it would be a small cluster of eggs (dime sized) under a float with a split shot to get it down.