I prefer the 22mm for flavour, and the 25 for big tank practicality, I can usually get through a day at work without having to fill it. Now if you don't mind I'm off to write out "I do not need a Griffin Mini" a hundred times.Big fan of the griffin here. I have the 25 and the 22mm, love em both but prefer the 25
I'm one of those weirdo's who think he flavour from smaller tanks like the ones above is a touch too muted. The original Griffin get's my vote every day, though my new Kayfun v5 is quickly becoming the leader of the pack...