I fished Morgan Lake this time last year with decent success. The reason I went was to try my luck at the Brook Trout that I read were in the lake but managed to catch 5 Rainbows in the 12-14" range instead. (My wife outfished me 3-2!) I lugged down my inflatable boat and electric motor which was a ton of work but definately worthwhile as there were 2 float tube guys that left after a couple of hours due to cold. The float tubers were also hitting fish about the same size.
I looked for access to Florence but couldn't find a decent path to the lake so I didn't bother.
Conclusion...definately worth the time, besides it is a very pretty lake even if the fishing doesn't pan out.