Effecient ID of air supply tubing to the Classic valve?

[Pete02019]

I can understand "the larger the cross sectional area the better" ... But ... at what point can it act like a restriction and significantly impact the Classic valve's ability to regharge (lets say w/ 13 bps)?

How about for that X-valve?

In both cases you probably do not want anything smaller than cross sectional area of the smallest path in the valve. Anybody know what that is?

[GoatBoy]

Smells like FUD if you ask me. I haven't actually seen any testing that said macroline was better than microline for the pressure ranges the RT's work at (700-850 PSI usually).

I'd be happy to see it if it did exist.

Not anecdotal stories, but real tests or calculations.