I've been trying something similar--except when setting the rubbing block on the highest point on the loose cam, I try to have the elongated slot of the points set about centered on the tightening down screw. My thought was then I had max adj. available in either direction. I don't understand the Moby experts who say they can set the timing in 3 minutes. And this means that nobody can set timing without a cam puller if it's ever been moved. And lots of folks don't pull the cam. (a couple of mine have heavy plier marks on them, either the PO used water pump pliers to rotate the crank or was trying to pull off the cam). Maybe I'm missing something. If it wasn't freezing out I'd try 1.5 for awhile.