Thanks SJN

By the way, I just dug out the OZ printed mag review of the GSP Zero.

They did use an OS .91 FX.

If you're interested I can scan and send it to you.

Some good info re flying characteristics. Also an interesting solution to fitting the EURO retracts with the kit supplied fixed undercarriage wire, to beef the u/c up and also solve the length problem.

By the way, your fitting a 150 Saito is pretty much on par with fitting a 120 2 stroke. It should go real well.