Oh yes, they say mice learn on their third wrong turn. I've frequently caught myself doing the same mistakes far more often than that...

(I'll never have that fifth/sixth beer again and so forth)
I'm putting some thought on the engine cover. Since the lower part will be both removable and structural in a sense that it's going to have a gutter/lip where the hatches will rest, I'm finding it hard to come up with a way not to leave some spot where minor water intrusion will be inevitable. I'll have to try and draw something so it makes more sense, if someone figures out what I'm talking about even with this vague description, then I'll be glad to hear some suggestions on how it's usually done?