Scott,
Good question, and we do get it fairly often.
The short version is it normally it takes a few sessions to get used to the bikes, then they are not worried about it (often only 1-2). They work so well, are so neutral, that many find out what a bike should handle like, and you can take that back to compare to yours. You do spin them higher than a twin, and it can come on more at the top, but they are very ride-able, and it won't be overpowering.
Let us know what you think after you ride 'em!
Best,
Cobie
Thanks Cobie, for both the "official welcome" and your prompt assurance as to my concern. I am really looking forward levels 1&2 in May at VIR, and excited to do it on the ZX6! Furthermore, I've read all Keith's books several times over, and I'll keep re-reading them right up until my school date so I should be pretty familiar with everything - so then maybe I can afford to spend some of my $10 on adjusting to a different bike :-)