RE: First Gasser ?
Re the Pluse125, the feedback on the specific forum with the DLE20 in it is VERY positive (thought about that combo for a while myself)
Personally, I have a H9 .60 sized (65") P51 that I'm going to stick my DLE20 into (with a Jtec 1.25" wrap-around pits muffler), it's a perfect high powered match being that aircraft is designed to take a 20cc gasser anyhow (ie FG20 from Saito)