When docking or close quarter maneuvering you want immediate response but with bigger boats and engines you re always bumping in and out of gear...
Either core or some voids in the laminate
Big engines… and I believe naturals have higher compression ratios. I would use starting batteries
My boat was 32v till I repowered and converted to 24. I used 8v golf cart batteries and used to get about 4 to 5 years life which is pretty good...
