My volunteer department uses the Cairns 1010 with the 4" shields. With my four years of experience with these helmets, I was not impressed. I went through three shields not counting the one that is cracked on it now. I melted one and broke the other two. I am rough on my helmets but when you are one of the ones that do alot of the work I guess tha will happen. It hurt my neck also on the long calls. It just doesn't seem to be balanced right. I went out and bought my own helmet about two years ago and am now using the Bullard UST6 with the bourke flip downs and the ess goggles and I LOVE IT! I can wear it all day and my neck doesn't get sore nor does my head where the helmet rests on it.
However I am now looking at buying a Cairns New Yorker helmet for my paid job. They use the same exact helmets(other than color) as my volunteer dpeartment uses. Never used a leather helmet so if smeone can give me a little advise it would be greatly appreciated.