Hi Bryan
You may want to look at my FP Southern Scotland reports for Jan/Feb and March/April 18 where I detail issues I had with my 123 ignition. The new circuit board fitted then is still working fine – may be tempting fate…..Overall I think it is an excellent system and the car runs much more smoothly than before, even better now with the overhauled carb.
Cheers
Peter
Peter Fereday