Had my new to me wake 230 in the lake for the first time this weekend.. Seems the previous owner was a bit less than forthcoming.. Surprise surprise :-( a few deferred maintenance items.. But two things in particular I noticed top speed is about 42 to 43 miles an hour not the published 50.. And the electricals, stereo and some lights seem to be on all the time and the batteries go dead over a 24-hour period.. as well the speakers on the tower don't seem to be getting power. Can anyone comment on any or all of these?