update: Today I picked up a 7x4 mas prop and a 3 oz fuel tank but left the 2 oz tank on this evening just to try the prop before dark got me. Last nite I did what Kirk told me and pulled 1 head shim on the magnum 15. On 15% synthetic cool power and after I tweaked the low end just a tad to get rid of the slight rich low end hesitation I got an amazing 18,500 with still a couple clicks on the rich side to go. I didnt want to max it out just to see what it would do because I am only on my 4th 2 oz tank of fuel. Id say I got a winner so far , what about it Kirk and Mike? Im curious to see waht 30% heli fuel will do now! Alll I can say is I'm very impressed with this engine now!!! That little 7x4 made it scream. You were absolutely right Kirk, it needed that prop to help the break in and to turn up. Im excited!!
Thanks both of you for your advice!! All I gots to do now is fly it on the maiden this weekend. Will keep yall posted.
John