I'd like to try it with a few degrees more advance. I might machine the slots in the stator plate a bit more. I use a steel slinger that has been extensively lightened.
If I don't roll the motor back to the opposite side of the compression stroke, it doesn't spin over at all. The kicker just goes solid. I reckon I could force it to spin over but it would kick back for sure and smash something. Its a compression thing, not an advance thing. 165cc engine running 11:1 compression, starts and runs beautifully if you show it a bit of respect.