Hi Michael,
I was couple of weeks ago there and did popping around Havelock for couple of days with Surmai Fishing Club. I had same experiences than Dan with the big cup faced lures, so use lures that splash as much as possible (we used River2sea Dumbell poppers + my own handmade poppers). In January and February the weather can be quite windy in Andamans so smaller cup faced lures like pencil poppers are easier to use (they don't "jump" out of water). Blue, blue/silver, red/white and dark green (almost black) were the best colors. And prepare for long casts (those are needed)!
Btw, I wonder did you get the last SP80M from Seawoodtackle (lucky you)... Not in stock anymore, just checked.