Just a thought! Do you slip it into gear or do you snap it into gear? If you are being a nice guy and slip it into gear you are slowly killing it! All clutch dog drives should snapped into gear quickly, if you hear the gears clicking as you shift into gear you are rounding off the clutch dogs which in short order will have the drive slipping out of gear at speed. The switch to a bravo needs thought, I did it and in no uncertain terms regret it $$$ wise and speed wise. You will need a drive, transom shield, sea pump and complete engine removal, cost me near 8K. For 8K you can buy about six SIE drives that have 3 year guarantees, I wish I had gone that route rather than listening to the bravado! My old used Alpha setup went on to my kids 24 Searay cabin boat that weighs twice what my 22 does, so far he has near 500 hours on it being an avid fishing nut you tell me I did not waste my $$$$$$$$$!!!!
No matter what your beliefs are "GOD BLESS AMERICA"
Fully retired marine tech near 60 years in the biz.