[GrahamH7060]

Thanks for your replies and links guys, I will try and update later

James , I've tried to locate some graupner props but everywhere I've tried seems to be out of stock ! Any ideas who's got them in stock ?

The carbon ones I did buy seem okay , I balanced them by adding some very thin vinyl tape where necessary , as they are all nicely lacquered and didn't want to sand off the finish ! Is it better to remove material from the props to balance them or to add ??

Also , I'm far from a whizz on my Mac , when you say you had to open a windows partition , what exactly is that ?
Please forgive my ignorance !

Thanks again for the help