If your plane is similar to http://www.cermark.net/List.php?TID=94 then I don't think you'll have any problem. We are hovering at a couple clicks above 1/2 throttle on the Scale Series 70 Edge (Cermark) with a MLD-28S on an APC 18x6W (only about 7 tanks of fuel - gone through this MLD-28S engine so far & still breaking in at 30 to 1 fuel-oil ratio).

We like this engine. I'll try to get off my assssss and put the maiden to the 2nd tank video posted.

Peace,
Steven Chao,
Cermark