I've ice fished for salmon all over the Northeast. Those fish in Schroon are the toughest. Go light with the leader, fish it a bit deeper than usuall, maybe 6 or 8 feet down with a leader that long, strictly flouro. You just want to let your swivel off the spool but still hidden in the hole if the ice is deep. There are some nice fat salmon in that lake, bright and shiny too, not like the dark ones in some of the more colored lakes to the east. You also never know when you are going to catch a pike. We don't target them but catch an occasional one (or snap off a probable) on a set close to shore.
Good Luck!!