Volt (and other hybrids) for newspaper delivery

Does anyone have experience with the Volt for newspaper delivery or anything similar? Basically its a lot of accelerating and decelerating/stopping at each house, and a lot of idling when we have to porch some papers.

I'm looking at a used 13/14 Volt.

I figured a hybrid would be amazing for this kind of driving, since it should regen a lot of power from the slowing and stopping, but I asked a co-worker about his Prius and he only gets ~27mpg during a Sunday delivery session.
Although, now that I'm doing the math, this doesn't seem correct. That's like 55% the rated mileage.
My other friend in his newish Corolla gets ~22mpg while delivering, for like 70% the rated mileage.
My 1999 Chevy Prizm is old and doesn't have an automatic mpg calculator, but looking at the numbers when I fill up, I get around 25mpg overall. Seems about right comparing with the Corolla.

I thought a hybrid should do better in lots of stop-n-go, not worse.

Anyways, does anyone have an idea how many miles I should be able to do in a Volt? My typical work day is about 50 miles, with about 15 of them being on the highway to work, so I was figuring 15 miles on gas and 35 on electric would be about right. Here in California, summer nights should be perfect weather for the battery.