Claytucker,
I know the flame out you speak of, but I use a 70 4 stroke and I'll tell you it almost doesn't seem to matter what prop I'm spinning its always there for me, unless I run out of fuel,,,

sometimes on other motors I have, when I know i've been idling a little longer then usual, I'll rev it up and down a few times real quick, before I commit to a full throttle getaway, that usually sets it straight again, I never even thought the Prop could be causing the problem, I just ass-u-me-d it was because some of my motors are about the same age as I am, I too fly my T_ _ _ T at full power all the time except when hovering or flat spinning. and the T_ _ _ T is the only plane I use a 14 x 4 on all my other props are 6's and 8's I do like speed on my crafts.
Tomorrow is flying day,,, YEEE HAAAA,,, I'm already loaded and waiting,[sm=spinnyeyes.gif] well now I have to load the plane stuff in the van....