Jens Bölte
Contributor
Hello,
Best wishes Jens
DFC does not facilitate breathing. It just counteracts the IP-drop when starting to breathe. Your work of breathing is determined by the cracking effort (work needed to open the valve; depends on the spring strength and distance of the poppet seat and the valve) and the breathing resistance (put in simple terms maximal potential opening of the valve).f my memory is correct the only difference in breathing comes from the tuning of the 2nd stage. That would again make DFC marketing BS. So hard to decide
Best wishes Jens