It's: "Test of 12% AeroSynth3" -not AeroSynth2 as I wrote in the start of the video. Sorry.
My engine didn't run well on 9% AeroSynth2 + 3% castor + 88% methanol. Now with 12% AeroSynth3 it runs just great.
Link: http://www.rcuniverse.com/forum/m_7668456/anchors_7668456/mpage_1/key_/anchor/tm.htm#7668456