ORIGINAL: Connery
It's powered by an OS Max .40FP and a 10x6 prop. What else might help shorten the take off run? I've thought about a different prop, but when it's actually flying it has plenty of power to pull the plane around the sky.
1. A 10x5 or 10.5x5 will be much more efficient on that engine/trainer combo. It will assist in shortening your take-off run. Though your model will fly marginally slower it'll accelerate and decelerate better.
2. Make sure your engine is actually tuned to achieve max RPM for that prop, then richen it +2 clicks.
3. Don't depart from the intersection. Use all the runway for take-off. Backtrack if you have to.