Hey Guys, Thanks for all the feedback, a couple of things,

1- This is my first gasser so YES I am worried about my fingers but I also used to start my .45's and .50's by hand and got quite good at it before starters came round. The secret with those was the flick of the wrist but also the position of the prop to turn at the highest compression point are gassers the same?
2- There are'nt that many guys with gas engines around to help.
3- Most importantly I no longer have the stamina to throw a prop round 100 times let alone 400 !!!!!!!
No problem I say Miracles happen. Once again thanks for the support.