Good news is... pretty much wherever you go on this lake (in deeper water) you're going to catch lakers. They may not be too big, but you'll catch them everywhere. I can't seem to get away from them on Winnisquam. I haven't had the numbers we get in the big lake, but it is typically a steady catch none-the-less.
Pot island probably is a good bet to try...
Pink and silver worked well for me last time I was out there...
Don't hesitate to fish late afternoon. I've caught bigger fish at that time on Winnisquam than in the morning.