A volumiser holds air for the next shot. Causing less shootdown to occur when you are shooting fast. You would buy a new one for looks or if it holds more air.
9/10 for spyders. Very nice looking so far. I'd reccomend getting a hp tank on it. Also a good regulator like the palmers stabaliser. Since it will work well with co2 and compressed air. Then i'd say the t-board or some nice board to bring up the speed. Maybe some new grips(dye stickies are nice) And possibly a better feed neck. Then i'll give it 10/10
