RE: Eletronic engine syncronizer - no joke
There was some wise advice that a long time twin flyer (even longer timer than Twinman) gave me and also on more than one occasion flew some very large and borderline powerd flights with great success:
1 you tune the first motor to peak on the ground and then back the needle one or two clicks (200-300RPM) and then you shut the motor off.
2 You start the next motor and do the same tuning.
3 You start the first motor again.
4 It is okay to do the nose in the air test if the plane is not too big or heavy to accomplish, BUT YOU DO NOT CHANGE THE NEEDLES TO MAKE THE ENGINES SOUND MORE IN SYNC AS YOU HAVE ALREADY GOTTEN THEM TO RUN AT THIER BEST AND ALLOWED FOR THE UNLOADOMNG IN THE AIR. SYNCING THE MOTORS WILL PUT ONE OF THEM IN A RICH OR LEAN SIDE OF BEST TUNE