Yes, when needed, it is AMAZING. Not a drop in the cockpit ever! Completely dry.
We did not enclose the stern, not necessary on a mooring.
Be prepared to spend Ridiculous $$$ cash $$$, nevertheless worth it in the long run.
In 1983, a year after I bought the Rusty Pelican, my girlfriend (now wife and mother) and I spent 7 days of total rain in Martha's Vineyard cooped up down below because we had no canvas at all. We learned that lesson!
There is no such thing as too much canvas on a 32' boat
I got pics, will post when I find them
P323 #174 38th consecutive seasons