22.5 WSM temps

Anybody know right off hand what the temp difference is between the top grate and the top vent temp on a 22.5 WSM? I'm not using the WSM therm, I have a Maverick in the lid vent. Heck while I'm at it, what about the temp diff between the top and bottom grate too? Say the cooker and the meat are rolling along steady with little to no water in the pan, at a 300* top vent temp. What, on average, will the top and bottom grate temps be? And yes, I know I could do this myself, today as a matter of fact because we're chuggin' away right now. Figured if someone could save me the time because they already knew, why not? :)

Thanks!
Rick

Follow Ups:

• Re: 22.5 WSM temps Papa Hog 00:00:19 12/23/10 (0)
• Re: 22.5 WSM temps John in RVA 18:39:04 12/22/10 (5)
  • 22.5 WSM temps Don, Dueling Bubbas 18:51:46 12/22/10 (4)
    • Re: 22.5 WSM temps John in RVA 22:58:04 12/22/10 (3)
      • Re: 22.5 WSM temps John in RVA 22:15:31 12/23/10 (0)
      • Re: 22.5 WSM temps Pit Stop 19:28:06 12/23/10 (0)
      • Re: 22.5 WSM temps Jackitup 00:42:20 12/23/10 (0)
• Re: 22.5 WSM temps meatcutter 15:42:42 12/22/10 (0)