i have a set of dave clarke h10-13 and the gel seals make them much more comfortable than the standard peltori fly the 22 44 and the ec120 and we have just put the boose anr in the 44 and it is amazing .. everyone must try it
watch though , make sure the low rrpm horn is rigged through the ics because some arent and the anr will cut the horn out!!
have boose anr on the 120 also very good for the long haul , if you do 8 hours a day like i do they are well worth the money. no headaches after a long day i think the kit has to be installed into the helicopters themselves --- each one---- try to convince the boss!!
at least try the anr before you buy any headset!