There is a recent vlog, I think it maybe the one where the taller one, the artist/magician ( I forget their names), is filling with another 200+ litres, states that with hindsight they maybe shouldn't have gone electric. Surprised Oakums didn't ask them to edit that out considering they apparently made them an offer they couldn't refuse on this boat build.
I'm also surprised they haven't burnt out the bow thruster yet, as the shorter one, who does most of the driving, uses it as his sole method of manouevre.