i'd say there should be a little lag with regards to spool but, nothing serious. 4-5m isn't that long. As air is a compressible fluid, at even at scotty's 45psi, that just resolves to 3bar, which does nothing for compressibility, so there will still be an effect, though, pipe length is a lot less of a factor than a restriction.
But theoretical vs physical, i still think scotty should give it a try.