I agree you just can't buy a boat that you can't run ---- example ---mine, when we went to water test it started and idled perfect, push throttle get to 2K shut off like you turned the key-more than once. Would start back up like nothing but get to 2K shut off like a key. 1 cylinder down at 85 lbs - fuel pump wire loose, caused shut down at any RPM and back on like you turned the key off and on.
Lots of things won't show up on a hose and don't want your buddy hosed either, we want happy SeaCraft owners
That doesn't mean you don't put a deposit on a boat PENDING water test- standard in the industry or you give boat rides all day.