I did the drop test and then open throttle full and did another compression test 150 each cycl. check with Honda dealer and they said the compression
What is the WOT RPM did you get ? And after what RPM it bounced ? Is this new modal BF40 (EFI) ? May be while trimming it is Over Rev...
manually pulling the cable all the way out should get you into full reverse. If not, you have to pull the drive to determine where the problem is
most likely the gimbal bearing , need to remove the drive to inspect and replace if necessary. Other item may be the U joints going bad