I have noticed a lot of blower discussion lately. I have been researching four big boy blowers and I am finding it difficult to accurately compare the cfms of all four because each manufacturer specs them out differently. Echo PB-755 1260 cfm @ housing and 625 cfm @ pipe Redmax EBZ8000 943 cfm (is this with or without tube) Shindaiwa EB8510 952 cfm without tube (what is it with tube) Stihl BR600 1012 cfm without tubes and 712 cfm with tube Now, in my opinion, if we just purely want to compare usable cfms for the purpose of moving material, all we need to know from each manufacturer is the cfm at the end of tube. I easily found this information on echo's and stihl's web sites, but I did not see it on Redmax's or Shindaiwa's web site. Can anyone provide me with these numbers so that I can make a fair cfm comparison between these for blowers?