I just bought a Magnum .91fs from tower for 149.99$ and they have web coupons for 10$ of 149.99 or 15$ of 150-174.99$ etc. Turns a 14x6 prop at 10200 on 15% omega with 2% castor.

Hows that compare to OS and Saito?
edit:That was 2% added castor to the 18% oil content in the omega fuel. 20% total oil content.[&:]