I often chase snapper with mixed results, for me so far bottom bashing on the drift produces but a mate who is a snapper whisperer says you have to be on your mark before dawn he starts fishing an hour or more before sunup, must be anchored and fish as light as possible i.e. smallest sinker. Stinker from an early morning radio broadcast uses unweighted baits into the washes but likes a bit of rock and roll (wave action) years of experience, I think time on the water = more chance of success you have just got to keep trying different things but putting in the time is key.