Well Hello again...
Just stumbled on the link I had saved for this topic so thought I would just give a quick update.
I got the bike on the road, so was able to fully test the converter that Brian designed for me....it works perfectly.
I did a few runs through them signs that display your speed when you approach them and the converter is spot on.
I still have the bike with the converter fitted although it hasn't turned a wheel for a year or so.
So there you go....a belated review of your hard work Brian.
Thanks again.
Regards, Joe.