[jmessner]

mandrin,

Yes, indeed, there was an unexpected punch line for some of us (me included). I totally ignored the propagation issue as I was more focused on bending of the shaft (assumed zero in this case by definition) disturbing the more normal dynamics. I wasn't even thinking about the time domain. Arghh!

So, now, put the shaft perpendicular to the clubhead path like in a normal swing. I've been convinced that the flexibility of the shaft decouples it from the mass of the clubhead at impact(and therefore eliminates any "heavy hit"), but how does the propagation concept come in to play in this case? Edit for clarity: Is the decoupling due to the shaft flexibility in that clubhead path direction, or is it more due to the propogation delay? Maybe a combination?

Jay