I've only had my '07 for about a month now but I'm getting about 112 miles per tank, maybe a little more. Keep in mind I fill up as soon as the light comes on and putting in about 3 gal.
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And God Proclaimed, "Women who enjoy the embrace of other women shall be exalted."
I also have an 07 with an Arrow 3 into 1 and get on average 140 miles on a tank. When the the light comes on you still have 35+ miles to go, but don't always rely on the light to tell you that your fuel level is low as I ran out of fuel a couple of weeks back as the fuel light bulb had blown... Doh!.
120 miles and I start looking for fuel.
Sensible riding I get 200km`s before the light comes on and about another 60 km`s before it runs out. Riding hard and using lots of throttle it can drop as low as 150km before the light comes on. I run TORS cans and tune.
The most I have gotten out of a tank, on a road trip slabbing up I-5 to Silverdale from Portland, has been 191 miles. I pulled into a gas station on fumes I think.
Agressive commuting nets me 132 miles until the light comes on with 3.5 gallons missing from the tank. I usually fill the tank before 150 miles. I get a little better mileage on road trips.
Current Setup:
K&N Filter, Chainreaction Exhaust, Pre-Cat Removed, Ceramic Coated header and mid pipe, TOR Tune