I have the Moki 1.80. I run straight Methonal(alchy) from the go-kart shop, mixed with 17% Blendzall.
OS type F plug.
Dubro 24oz. tank, running medium tubing.
Cline regulator.
Tank is on CG of plane, Goldberg Sukhoi.
18x10 Pro-Zinger prop, tachs at 7800+/-.
Hand starts in about 6 cranks or so, usually, it likes to start real wet. Very slow smooth idle for a glow engine.

What size tubing are you running from your tank to carb?, and what prop? I found the straight alchy runs very good, with good idle, instant transition, all that jazz. I couldn't find an FAI fuel that would run the way I know it should, so that's when I found the cart-shop. I was also using muffler pressure for a bit, and didn't get the consistency I wanted, so I put the cline regulator back in, after cleaning it up. That fuel and the Cline go hand in hand I think. You do need to keep that regulator clean, and free of all debri. Even micro stuff can alter that regulator. Mine works really well as set up. That tank/fuel system though has to be perfectly sealed. It runs at 8 to 12lbs of pressure, and thats quite a bit. I forget once in a while after a run when I go to fuel again, and it will shoot a good geyser.
It pulls that 14+lb plane absolutely out of site vertically. I wish I had other answers, I will ponder this one, and keep checking back though. Good luck