cilika - You know what You are talking 100%! Flooding, gurgling issues are 100% user errors! My experience is that between 1,2-1,5mm AFC the 0,3 coil in 2,5mm inside diameter +- 0,1 is the optimal. The reason of the oval is because of the testers wanted to use the MTL in lite DL mode with the 2-2,5mm AFC... Quite easy to wick the oval too but needs a little brain make it perfect. Isn't it? (nincs igazam? - a gyereket pedig vágtam, mert lehúzta a Dvarw-ot itt a nemzetközi fórumon és még okoskodott is.)