wingbolt
I don't remember names long, but, see I already answered in another thread by you that a 16x6 prop was way too small a load for the little 20. I also own and run a lot ( over 1000 hours) a Zenoah 20 which has nowhere near the power of the DLE 20 yet a 16x8 is perfect for it too.
I hope you have fun with your 20 as much as I have.