Does anyone here use a Stoker or Guru with a Klose backyard pit? I've got a 20" Klose and I noticed that the Guru website recommends a 25cfm fan. I've got a 10cfm fan for my Stoker and it does the job, but there are times when I wish that I had more air flow. I was wondering if the 25cfm fan is overkill. I also use the charcoal basket, if that matters.