I have the old ignition -- but with a munted crankshaft and bearings (out of the box) no amount of updating of the ignition is going to make it run sweetly (or at all) :-(

CRRCPro have *lousy* quality control so buying one is/was a lottery.

I've yet to see a dud DL50, the QC there seems better and they're just in a whole different league performance-wise. Plus, you don't have the hassle of an awkward side-mounted carby to deal with.