Yeah, I have the DLE 30 on a Goldwing Yak, swinging a Xoar 18-10 also...like you say, unlimited vertical, more power that you can believe from this engine.

On the P-51, you are right, they seem to think that toothpicks will be enough for the landing gear on these planes...NOT for a grass runway as I have found out...[X(]...unless you re-inforce it well.