Good job, that would put my mind at ease. With those numbers a leak down would not be in order.
That is really high numbers for a two stroke. If the gauge is accurate, I would be concerned with that much compression on a fishing motor. You will need the highest octane fuel you can get. Don't fret over the fuel containing alcohol as it can actually run a little cooler
Might be wise to reduce the WOT timing a couple of degrees and be sure the fuel system is in perfect condition
Maybe Don, Savage or Joe can add more to this, those numbers would roughly represent about a 9 to 1 compression ratio
Might be a good idea to rig a regulated air supply to the tester to verify how accurate it is. To do this, air must flow thru the Schrader valve to be valid