Nope...you are incorrect.
I painted my soon-former sailboat, a 28-footer, in 2002. Did the two-part Awlgrip, and it really turned out very nice.
The boat yard owners would even bring around other boatowners and show them just how good a job an amateur can do IF you take the time to do the prep work correctly. It turned out to be a one-foot paint job...let me give myself a pat on the back!
The reason I asked the question, though, is because I greatly underestimated the length of time the project would take, and consequently, didn''t get my boat back in the water until late-June...and that''s what I would like to avoid by starting on the project over the winter on nice days.
And because the my "new" boat is a 38-footer, I know it will take even more time.