I wouldn't use it for several reasons. First of all, it is winter and mice/rats are not out, so the fish aren't looking to eat them. Secondly, since it is a 9000 ft. lake it most likely, unless you are fishing for lakers, have fish large enough to eat that. Also, fish do not eat as large of forage in the winter because their metabolisms are so much slower. I also do not think bigger baits= bigger fish. I have caught large trout on small worms and castmasters. Stick to those if you want to catch fish, and if you are catching too many small ones, get an aquaview and look for big ones.