i gave those settings a whirl, start ramp was already 7. dropped it to 6 and adjusted the start point auto to 4 with similar result. i also tried dropping the start ramp to 2 with a improved result but slower start. still a 10-15cm flame. i did fire her up while still warm 70°c, so im not sure if tha will give me false readings..

it is very cool here about 13-14°c so does that make a difference?

it looks great blowing excess kero out the back but ill be mounting my boom (modelbau tornado) soon and i want to keep flames to a minimal, however i am of the understanding that a pipe will be required.

am i dreaming that i can reduce the flame to almost nothing or is it a fact of life with turbines and isnt much of a problem for models with exhausts etc.

thanks guys, sorry typing on tablet and its a pain in the a**