ORIGINAL: diablo_r
I can get round it right now just runnign tickover at maybe 2500.
The lowest reliable idle I got was 1700-2000 (that's what my tacho shows, swaping the numbers like at the bingo table

). My MVVS 1.6 gas also runs about the same numbers and with APC 18x6 the PowerLine Hobbies Edge 90 handles OK on the ground (taxi OK, but does not want to stop). As I'm going to use this engine on bigger (heavier) high wing floater any idle below 2000 will be perfect.
With some engines (glow) I had a problem that reliable idle was to fast for taxi. I used 'Idle down' on my futabe then. I keep reliable idle while I'm flying, and for taking off and landing I switch to low idle (then I work thottle to no tlet it die).
RysiuM