As an ex Mk1 GT owner and current SX owner a lot of what Steve says is correct.
Steve
the demo SX you had must have had a hole in the tank. 8miles /per litre I am getting 185 miles on a spirited ride and that is topping up when the fuel pump sign flashes and means you are down to 1 ltr reserve(19ltr tank). Have managed 204 miles from a tank but running on vapours, Mr TOM TOM let me down as could not find a petrol station, 18.75ltrs she took , I had been meandering along enjoying the scenery coming back from France.
Concerning the seat absolutely correct I have sat on more comfortable bricks, as mentioned 80 miles and numb bum forsure.
Fuelling when I got mine the throttle was a bit snatchy, but Alan SH sorted that for me all that was required was a little bit of adjustment on the throttle cable as there was a lot of slack to take up. A few other SX owners have voiced concerns about it as well and the remendy is simple.
Also trying to find neutral was interesting but as you get used to the bike and a few miles in no worries
Agree the pegs are a bit on the high side and as mentioned further back , more sports bike orientated .
Concerning the finsh? time will tell, but I would say the finish is certainly better than what my Mk 1 was , I had rust on the welds around the frame joints, within 6 months from new and the paint was very thin as has been mentioned on this forum many times. , one complaint I do have is the tank because of the design, is prone to scratching and a good tank pad is required particularly if like me and have a bit of a fender belly.
Obviously I am biased here but I think in the SX you are getting a lot more bike for your money, as in it is fully fared,
I am sure also the SX is some 20kg lighter than the CBF ,228>248 for the biffer?
The lack of a centre stand on the SX is diffinately a big minus and one cannot be fitted, when the MK2 CBF was introduced a centrestand was an addon

Kawasaki have shot themselves in the foot when they introduced the SX , you could have it in Touring version either with Panniers or Top Box but not as a Three lugauge package. Givi have now brought out a system were you can have the Panniers& Top box system. I will have to fork out nearly 520 quid for the conversion. This breaks down as 250 quid for the Top Box, 175 quid for the top Box carrier frame and Givi mounting plate and another 195 quid for replacement Pannier mounting brackets the existing brackets cannot be used with the new system. Dammed annoying I may add.
Still I would be interested to see if and when Honda do bring out a GT MK2 what it comes in at. Even by the time I fit the Three box system it will have cost me 10200 quid,there abouts, original purchase price was 9749 quid and that was for an ABS model SX Tourer fitted with colour coded Pannier.
Would I buy a Z1000SX tourer again , certainly, the performance alone is second to none in this class, only the Yamaha FZ1 is up there with it.
Is the SX as comfortable to tour on as my GT was , NO , having done the same run down to my place in SW France on both bikes the GT wins hands down for comfort and that is not just the seat. The ridding position is more sporty than the GT and perhaps at 63 I should have taken that into consideration, but sorry I just find the MK2 Biffer just boring to look at and the price hike when it was introduced compared to the MK1 was scandilous.
Let's face it the SX is one sexy looking bike , but as my wife says maybe I should act my age and not my shoe size.
If one is looking for a fun bike with the capability of touring the SX is a good option, if one is looking for a more comfortable touring bike I suspect the MK2 CBF is a good option.
Why oh Why did Honda not sort out the Stator problems on the MK1, because value for money the better bike is the MK1 GT and if there are any new ones still out therefor someone on a budget grab a bargin.
Lew