Not too much experience or time with the IO360. The other person that responded when he said something about the location of the cam being on the top of the engine is the problem-a design flaw. Being on the top of the engine it does not get oiled.
The fix I used is the Ney Nozzle. Do a google search.
What he does is to drill into oil galleys in the case and installs nozzels that spray oil on the cam.
Preoiler is another good idea.
I believe with both install you should get long life from the 360!
Regards,
Wes Afra