If I want to increase line tension, should I increase engine out ward thrust, Slide the lead out lines further back or put more offset in the rudder? Is it a combination of these? Which would you try first?

All of those things can add to line tension by making the model yaw outwards but that adds drag too which slows the model down. Generally, if the inside wheel can be seen to be slightly ahead of the outer wheel then it's yawing enough. If the model only has one wheel then it's a bit harder to judge . Most line tension comes from centrifugal force, usually around 2-3 G, so it's a combination of line length and ground speed (not airspeed). Centrifugal force is what keeps the model tight on the lines in a wingover, particularly when overhead, so try shorter lines and/or increase the revs for more speed.

Also make sure you are using the correct diameter lines for your setup. I once used .015x52' lines with a baffle .15 which handled totally different than on .012x52' lines.

George

Contrary to what you would expect, moving the leadouts forward is the thing to do if you are not getting enough line tension above 45 degrees. Don't move them more than 1/8 in at a time.

Yes i'm losing line tension above the 45 degree, is moving the leadouts forward what i should try first?