I like the three separate systems that the H2 and H1D use, since if something fails, you can usually still ride home. It also doesn't have the carbon brushes and commutator of the late H1 system, and it allows you to easily set timing for the three cylinders independently. If, for example, your crankshaft is a degree off of perfect 120-120-120 phasing, you can still set the timing where it should be.
As far as starting, there's no practical difference. The only maintenance difference is the late H1system's mechanical "distributor" that has mechanical parts that are subject to wear. One advantage is the reduced cost of a simpler CDI unit, and another is that the single magneto coil seems to be less prone to failure than the low speed coil in the H2 system, although Strokerface here is currently having trouble with his late H1 single magneto coil.
_________________ If it surges, that's normal, upshift.
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