I have a Clarke industrial 3hp 14cfm compressor, probably about 9fad but not sure, now when I look at the spec for an iwata airfed visor it states 140-300lpm, what causes such a variation. As the regulator is fixed at 1bar according to the spec sheet. Also is the lpm calculated at the 1bar pressure, so in reality with a 10bar compressor it will let the compressor cycle ok and not constantly run. I mainly use a devilbiss sri spraygun so was hoping with mask and this gun it wouldn't be a problem keeping up, then I just need to turn on my second compressor when using a full sized gun as my kestrel primer gun and sealey gun uses a lot more air.