At the beginning of this season I bottom painted with Interlux E2000 and VC17. Needing to get under the trailer bunks, I built four simple stands from 4x4s, a short piece of 1x8 and some scrap carpeting. I positioned the stands at the bulkheads and secured them to the trailer with 3/8 line.

To test the stands, I slightly lowered the bunks just below the hull surface and attempted to rock the boat. Amazingly she was rock steady. In retrospect, I think the combination of balance on her keel and the bow winched to the trailer is really all that was needed. Regardless, I always brought the bunks back up anytime I left the boat for any length of time.

BTW, the top strip of tape folded in the middle is a rain drip edge to deflect any water away from the painted surface.

Bottom painting under the bunks of an H23