Michael, on the National Trust waters, outside the coarse fishing season, it's worm only for bait. You can fish for the trout.
Come the 16th can use most things if coarse fish are present. In most cases you'll be fishing for Trout, perch, pike & eels. There are a small head of roach in Windermere now though. You way be lucky & get a chance for a charr & I know one person who would take the odd salmon as they move through the lake.
There are other club waters around so you'll have to check them out.