I suspect that this has been covered before but I'll ask anyway:
When the completed model is suspended from its leadouts to set the initial lead-out position - what are you looking for? What degree of offset hang is acceptable for a starting point? I have some models - one in particular that I need to check this on - partially to compensate for (I suspect) mounting the engine with inadequate built in side thrust. Thanks, (a vote for trim section in forum here) 
Aw, Pete! We can handle trim questions here for now! LOL!!!!!! (actually, I don't know what Robert's limitations are for adding a new section with all the ones we already have)
A slight nose down attitude is all we are looking for. How much? Not real sure, all I hear is the TLAR method.

Remember, the top dogs promote 0-0-0 set ups, no engine offset at all. The more the plane crabs, the worse it maneuvers, and the more line tension problems you will experience in maneuvers.. and especially over 45*
Bill <><