Same here. That was 106 degrees ICL for me. Two keyways counterclockwise from the cat logo. That is correct.
Guys, yes, if the gear does not sit flush on the step of the crank snout, when the balancer is torqued the sharp chamfer of the hardened gear (seemingly much harder than the crank) will press into the radius of the crank scoring a small circle into it. That is what is known as a stress riser.
Kind of how a piece of glass snaps right along a line you score with a diamond cutter....same principle. The chamfer should not under any circumstance rest on the radiused edge. the radius should not be touched by anything. The gear should rest on the step. This will eliminate any possibility of scoring a line into the radius and snapping the crank.