Ok here goes benifits of degreeing cams?

yes degree the cam . just so you put it were it should be . remember production parts have tolerances , is a couple degrees this way or that do to chain n gears , and pin placement in the cam , and the grind itself . and of course as said so you can rotate it for more low or top end . unless your buying all custom built parts , no even then .
over the years, I have found the gears to be marked wrong, versus cams being wrong. the gears are indexed off. some not much , others , a lot!! just food for thought.