All I know is that some of my motors start right up easy, and still start when they are hot, and some of my motors are absolute nightmares to get running From my experience, a starter box, or drill type electric start is the only way to go. There is no way I'd want to go back to pull start!!!
Jag
OS .15 CV-R
OS .12 CV
OS .12 Cv
Ofna Force .12
Ofna Force .12
Trinity Picco .12
Trinity Picco .12

And a few others that have come and gone!!!