Will,
In my set-ups the GT33 with CDI will die on the lowest idle setting so that should be ok. Just set it up so it will. If you ever get into gasoline, I sell a terrific gas line and nylon fittings to make your own custom tanks. Stays flexible for years unlike the yellow tygon. Inexpensive, about 1/5th the cost of viton with virtually no practical difference in performance.

I admit that Ed's IBEC was such a pleasure to deal with arming and disarming the CDI from a distance. The safety aspects are great.

I have the GG15 coming soon. They are still not in the US. Will go into my grandson's T-Clips. I 'll get first hand experience with the glow gasoline arrangement very soon