Bigford, might be worth investigating that idea, thanks.
Umi, I may be picking your brains soon for detailing at that scale.
Did a first submergance test last night - all went sort of until... put a small load on the deck, turned around to get my camera, turned back to find Marlin half way to a capsize!!! So, sorry no pics, will try again this week I hope.
I hadnt appreciated just how tender it would be when submerged, I havent put any stabilizing buoyancy in yet, I thought it would be ok in a flat calm test tank!