Sports - TOURING use: FZS 1000
SPORTS - Touring use: FZ1
Horses for courses really, it's down to personal preference, budget and what kind of riding you'll be doing most really.
My personal preference would be buying an FZS1000, and then spending the extra money on sorting the suspension out and getting the bike Ivanised.
You'd get a bike that would handle very well (not quite as good as an FZ1 as they do feel a bit heavier, but you'll not notice it a massive amount on the road), with very similar power and brakes, but also the ability to do very long distances, two up and with luggage if necessary in comfort (whilst still maintaining economy).
That's mostly because I do a lot of distance riding with luggage and a pillion, and to be honest the FZ1 just isn't that comfy for some of the distances I do!
That said, if i were doing track days, wanted needle sharp handling and a top end power bias and didn't care about the practicalities trade off in a smaller tank and using more petrol I'd probably buy an FZ1.
Well actually, I wouldn't, I'd just go buy an R1
I think the conclusion I've come to here is why DO people swap for the FZ1?