Huh... My Commercial Oral at Shebles lasted 30 minutes. It consisted of the examiner having me write TOMATOFLAMES from memory on the white board while he got a cup of coffee, a density altitude problem, and class G airspace on the chart. Not even kidding...
Then we proceeded to fly, and during the flight it turned out he didnt even know what checkride I was taking. He thought I was doing the Muli-instrument add on, while I was doing my initial Commercial in the Travelair then adding on the CSEL the next day. My CFI was good (once he figured out I wasn't there for a multi-engine rating, but my initial Comm in the twin), but all I did was spend most of my time filling out paperwork, reviewing the handouts they gave me and WAITING & WATING & WAITING & WAITING for some ground instruction or to go flying....
The examiner wasn't Joe, cant remember his name. This was in 2001 out at Kingman, Az. It got the job done though, you're mileage may vary.