It's a little like trying to run a diesel engine on some unleaded fuel. It would suggest a service on the marker before making a sale, or, state this in the first post so that people are aware.Shoot co2 on it mate was alright.
As for the BPS quote...
The marker will certainly cycle at 30, but it is a very unrealistic figure to actually SHOOT at 30. Feeding paint at 30 BPS would be very problematic.
I only stepped in because some of the people posting on your thread seemed quite new, by the questions they were asking. Thought it only fair that they had the correct info as one in particular was about to purchase.
Wingy...