RE: setting idle and fuel mixture
If it keeps stalling when you take the ignitor off try leaning out the low speed screw just a bit more...I meant to ask though....are you still in break in mode or have you already completed break in?
I usually leave the ignitor on for about 30 seconds or so after I get it started just help it warm up a bit...
When you replaced the glow plug...what temp did you get?...cool...medium or hot?
I run McCoy MC-59's....they are a medium/hot plug and seem to work very well.