I have worked with the low end and found this works great for transition .... Tune the top end for best running with the prop your using ...then shut down and with the throttle barrel FULL closed turn your ( count the number of turns to full closed for later reference )low speed closed then back out to 1 1 /4 turns ...you should then be VERY close within 1/8 a turn eight way for a good trans. give it a try you may like it
Lets us know if it works for you.
I also use Hanger 9 plug