Dan, I did the maths, did you?
Working duration is:
300 Bar - 41min
207 Bar - 36min
The 300Bar CFW cylinders on polycarbonate backplates are an amazing difference. Its like chalk and cheese. I agree with your point about the low usage of SCBA in the CFS, but perhaps individual groups and regions need to get on the journey and investigate the purchase of better sets and cylinders for brigades that do use SCBA regularly. The obvious candidates are going to be Hazmat brigades and those that do a fair number of alarms/structural fires.
CFW cylinders aren't the precious little eggs that everyone seems to suggest, they can take a beating for sure.
Plus, think of the fun you can have running dual 300Bar cylinders, for a whole 92 minutes of working time! Oh the joy!
Bittenyakka, time to get people who think like that a few bucks for a can of harden up and a phone call to 1800-Boo-Hoo. Throwing a set on isn't that hard, and your lungs will thank you. Good heavens the cleaning takes a whole 10 minutes and most of that is letting the disinfectant do its think. Oh life is tough!