Do not ignore compatability issues with bottom paints. Bottom paint is not cheap. If you do the job right, initially, you are then looking at just an annual coat ot keep it in good condition. It would be an expensive waste of time to just paint it without having determined what was on it previously, and having your paint fall off. I stripped mine this year for just that reason. I recommend a pressure washer. It got about 75% of the paint off, especially the heavy stuff, and after that the rest was more an exercise in tedium rather than hard work.
“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.