Wait a few days. RCEXL is going to supply to all distributors a kit for set the timing on their RCEXL ignitions. (Hall sensor test kit):
http://www.dlenginesaustralia.com/dl...&productId=187
I've done what you're trying one year ago:
http://www.youtube.com/watch?v=LHPfudm0vxI
I was lucky because i set the timing without any reference , and engine goes well at first run.
After a year of use, the owner of this engine is very happy with this conversion...... It flies a Funtana 140 Sebart with canister exhaust. 18x8 menzS prop @ 7.200 rpm...
Regards