Be interesting to read a handling comparison.
Mine is a bit later, semi sloping crown. I like the graphics set of the earlier frames.
Quite lucky, the bikes were not imported to the USA in any numbers till later and even then, not that many.

I first heard about them in 1976, an importer had some at the Anaheim Bike Show. A co-worker advised "you need one", but the shop owners were not looking for another line of pro bikes.