Tinsnips- Now, that's an interesting question. I will be looking at that when I get a chance to give the bike a workout. (Today it's 20 deg F and the roads are icy after a couple-three inches of snow).
I had little time on the bike in the original clip-ons configuration, mostly due to the neck thing. A full day of ortho pain was a tough price to pay for a few jollies on a sport bike.
I did do some longer rides on it, up to a couple hours, with the drag-like bar and apart from the sore wrist from the odd grip angle it had- I couldn't rotate the setup enough to get the right angle without lots of hard-parts fouling on the fairing- I was pleasantly surprised with how well the bike accommodated me.
The setup does indeed go lock-to-lock but there is minor contact at each end. Not enough to be dangerous or to cause U-turns going wide. I don't like it, but so far it's the best I can get.
Added to the equation is that I also installed Soupy's links to get the back end down a little. Since this is after all the Missus' bike, and she's a newer rider who still wants a firm foot-plant at stops, that was the first thing I did once the bike was running halfway decently. Actually, I kind of like it. The drag bars were only a bit wider than the clip-ons but the effect, with so much less weight on the wrists, was quite a bit lighter steering at moderate speeds.
I haven't yet measured but I believe the Helis are the same width, again not much more than stock.
The tires I chose to install are Pirelli Diablo Corso IIIs. We liked them on another midsize bike and they're a lot cheaper than the Michelins we usually get. Remember, this was a $900 project bike and watching the cost was Item Number Two after safety.
The Pirellis turn in fairly easily and quickly, at least compared to our other bikes, so I would say the steering is quite light in regular road riding so far.
A track day, if this bike hangs around long enough, is far in the future, but that is what was cited by the Missus as a reason to purchase. We shall see, but so far, I really haven't been able to do much of what one would call performance riding on it, what with sorting out the numerous problems with just plain running.