Originally Posted by
Nitrovein
First of, I agree with
1QwkSport2.5r that this is getting a little OT, so I'll keep it short.
My best tip is to take it in small increments, and use as good of a way possible to quantify YOUR results.
A little bit of knowledge is a dangerous thing, as they say. 
OT..??..why..? I think it was most relevant of you to ask me for the “balancing factor” of the Enya crank in #2634…! Peter Chinn in his review in Model Airplane News, February 1983 identified two “flaws” in the performance of the Enya 60-4C: a)vibration and b) idling speeds. The wording in the corresponding review in the UK magazine Radio Modeller(my printout lacks issue No.) is similar to that in the MAN article clip attached. I have attempted to address both “flaws” with my modifications.