Because I am trying to sort out my “Gem” fitted with the B.J. engine, I should be interested in which model of Wico “A” magneto club members have fitted to their “Gems” in the Wico manual, it states that the correct Mag. for the “Gem” is the no 955, I have never come accross this particuler varient but I have a couple of others, can you let me know what model “A” you find successful please?.