I bought an R19 knockoff 2 yrs ago, mid-summer. It is old, witha thick glass hull, and no apparent problems. It was a lake boat, so the bottom had never been painted. The rest of that summer, it lay moored in Lewis Bay, picking up the usual detritus. I hauled out in the fall, scraped, etc, and painted the bottom with Pettit anti-ablative. It then sat on the trailer until last Memorial Day.All last summer it lay moored, and the occasional scrub would remove any slime. No barnacles attached. When scrubbing, some paint would come off inthe water ( slight "blue" tinge) but not down to the glass. I hauled last fall, scraped, scrubbed and got it nice and clean, where it sat on the trailer until now. My Questions: 1) should you launch soon after painting? If so, how soon?( I was told I shouldn't have painted in the fall and waited until spring to wet the hull); 2)Should some paint come off when scrubbing off slime during the summer? Any assistance is appreciated.