Good point(s). The Airmax's chinese barrel can vary greatly and then add to that sitting in a shipping container for who knows long(or dry) on its way here. I'm not on a chinese barrel witch-hunt but the quality of chin. barrels can be all over the map compared to BSA's(UK guns), HW,LW, etc. I guess i've just been really lucky because i've never had a problem with an airgun barrel. Had mechanical issues but so far good luck with the tubes.