Yep. You pretty much covered 'em all there. Those old magnetos look pretty good now.
Many people get transfixed on advanced timing causing serious engine damage but don't realize what seriously retarded timing can do also, especially on engines running at high power settings continuously. If the timing was retarded to 0 or 5 BTDC instead of say 25, I'd guess EGTs might increase 200-300F with the CHTs also increasing 100+ degrees. Meltdown is only a few minutes away. Of course in this case, you feel a massive power loss as well whereas with overly advanced timing, say 40 BTDC you might not notice.
Several of our customers have preferred to hedge their bets and retain one mag. Not a bad idea as ours is alternator/ battery dependent.
Many people get transfixed on advanced timing causing serious engine damage but don't realize what seriously retarded timing can do also, especially on engines running at high power settings continuously. If the timing was retarded to 0 or 5 BTDC instead of say 25, I'd guess EGTs might increase 200-300F with the CHTs also increasing 100+ degrees. Meltdown is only a few minutes away. Of course in this case, you feel a massive power loss as well whereas with overly advanced timing, say 40 BTDC you might not notice.
Several of our customers have preferred to hedge their bets and retain one mag. Not a bad idea as ours is alternator/ battery dependent.