I inverted an OS Surpass 70 in a Global PT 19 with no problems at all. I even purchased an onboard glow lighter just in case but never had a need to install it.
As for starting it, I don't prime it at all, just put the glow driver on (used a remote set up) and crank it over with the electric starter.
Starts with little or no problems at all and I can't remember when I had a dead stick with it.

dj