I think it would be a good improvement if there were an auxiliary ring on the prop hub which would allow us to attach a trigger wheel closer to the case. Also, for those who want to go Coil on Plug, the crank trigger wheel can be placed on the prop hub and a cam position sensor built into Bosch 090 distributor body. The mechanical advance is not needed.
http://www.thesamba.com/vw/classifieds/detail.php?id=1412137 Glenn Martin Biloxi, MS