I mix Klotz Super techniplate in my fuel that I use for PA’s. I forget the exact part number but it’s mixed 80% synthetic and 20% castor. I mix to 20% oil content and then various amounts of nitro (5, 7.5, 10, 12.5 and 15)
Edit: I’ve also mixed some Klotz KL-198 light techniplate in the past as well, but use the Super Techniplate exclusively now