f4is all look the same except in 04-06 they went back to the bannana seat.
as far as "slimmer" id say by feeling yes they feel slimmer and the newer you get the more "track" focused the bike becomes. which means slimmer body, less weight more power, smaller space.

the 03-04 600rr actually uses the same suspension setup as the f4i's it wasnt untill 05-06 that the 600rr got the better components. (upside down forks..etc)

it sounds like your only choice is to get an 03+ 600RR.
you wouldnt like the 929/954/or 1100xx or the rc-51 or the vfr

 

Looks liek I'm gonna have to be test driving a bit. . .

 

I had an 08 ZZr 600 and it was way more comfy than most bikes I have ridden. Way better than the Suzuki sv650 and the R6 imo. The zx10 and 14 are pretty good rides as well. Not sure if you are a kawi fan though

 

Get that new bimmer. its 13 g's but has a lot to offer.

 

zzr600 is carbed, which he said he doesn't want

dude it sounds like you want the mythical comfy super sport bike
you're gonna have to give up something, either a bike with a little more bulk or something less comfy
they're pretty much mutually exclusive

i would say 04-06 f4i with the banana seat, it's what i have and i love it
the clip ons are above the triple clamp unlike the rr and has the nice thick seat
you can ride for hours

 

06+ FZ1 or 07+ FZ6

Both fuel injected, both comfy, and both have plenty of power! Oh, and you don't have to take on bodywork off to do any maintenance!

-Chad

 

Went down to the dealer on my lunch break just to poke around. They only had one 600RR there (no interest in a 1k). It was an 03 with the split seat, but I got on it and got the feel of it. That seat is HARD. Other than that, I really like the smaller size of the bike. Way more what i was looking for. It had a 2 bro's slip-on, and vortex rearsets and sliders, power commander, 16k miles, and the left fairing is wrecked from a drop. They wanted $5900, I offered $4500, but they wouldn't take anything below 5k so I walked. They had an f4i as well, I definitely liked the RR better. Incidentally, they also had a Superhawk there, which I've never had the priveledge to actually see in person. Those things are flippin HUGE!

 

You can get a nice used BMW K1200s for well under 10Grand.

 

Lookin to stick with CBR here, as I said.

 

just curious johnnyx but how tall are you ? and yes the #1 complaint about the 600rr is the seat especially from 03-06 but nothing a nice corbin or sergeant cant fix