Something else to think about. Some pull starts require you to remove the body to pull the starter. That can be a pain, especially if the motor dies several times. Roto is a minor pain, but it's hard to beat. I do have pull start vehicles though, and they are pretty easy to start. If your engine starts right up with a roto, you'll start right up with a pull. If you have to crank your roto for all it's worth to get running, you'll pull until you are blue in the face !

A good tune is your best friend !