That
said, it is still perfectly useful since it can be used to note
comparative measurements from location to location.

I also had the Tramax Skipper which I didn't like. Every surveyor I've
dealt with had the GRP 33. But nobody misses sounding the deck and
hull. You can't rely on a meter to tell you about voids without a
proper sounding. My 35s5 was surveyed by Todd Delaney who basically
felt you should sound first, then back it up with a meter, which is how
I work. Chapman School of Seamanship rated the GRP 33 the best meter.
For 310.00 it's a worthwhile tool to keep around.

RB