Thought I'd check back in with som flight reports. I tried a few different props with my 25LA and here is what I found:

8x6: What a dog! I barely got the plane in the air and I barely pulled off a loop. Not an option anymore
9x6: Again, not enough pulling power, plane felt sluggish
9x7: golden I really like this prop on this plane. Fit my flying style which is sport and sport aerobatics, not speed

I also just ran a 10x6 on it in my garage for the heck of it. I don't have a tach, but it diffinetly was not turning the RPMS of the 9x7, but WOW, what pulling power. I was holding the plane vertical and with full throttle I'd let go of it for a split second. It wanted to hover, but the little LA jus didn't have the power to pull it off. I think I'm gonna try to get out tomorrow night and try the 10x6 just for at least one flight, then I'll go back to the 9x7's.

Thanks all for the input.