Fizz,
I found my K4 600 comfortable, it was just if my back was playing up, it made it painful to ride long distances. The 750 does give you more torque than the 600 which allows you to ride it that way; it's not quite the same on the 600, but still not as revvy as some would have you believe.
The suspension & steering are good aren't they
When I first let Rich (Topcat) on my 600 I almost had to fight him to get it back.. Just think turn, and the bike goes over, and you'll be surprised at:
a) How late you can turn in, because it turns so quickly, and
b) How much front brake you can apply with the bike leant over
(Only on good surfaces with warm tyres though!)
Once you've run it in your be amazed at the power, and how smooth it's delivered. The Injection system is one of the best I've ridden, not glitchy at all. The traffic light GP's are great fun, staying in first 'till into the red
Take it easy, stay safe, but most of all, enjoy....
.............