What is the differencebeetween spool and poppit paintball markers?

This question arrosed when I asked what the difference was beetween the Dangerous Power F8 and G3. I got my answer and now im looking into it more. I haven't found anything but good examples. I own both a spool and popit and i am trying to figure out how they work. :D|||Poppet-valve-based electropneumatic markers are very similar to mechanical blowback markers in that they feature a stacked-tube construction, built around a poppet valve, that is opened when struck by a force. However, unlike mechanical markers which provide that force with a hammer propelled by a spring, the valve in poppet-valve electropneumatic markers are activated by a pneumatic ram. In the same way that the bolt is connected to the hammer in mechanical blowbacks, the bolt in poppet-based electropneumatics is connected to the ram. Poppet-valve electropneumatics share the same disadvantages as their mechanical counterparts, namely external moving parts, a reciprocating mass, and a louder firing signature. However, they are also more gas efficient than spool-valve electropneumatics since the poppet valve only releases the precise amount of air needed to fire the marker. Examples of markers that utilize this mechanism are the WDP Angel, Planet Eclipse Ego, Bob Long Intimidator, and Bushmaster.





In a Spool-valve-based electropneumatic marker, the bolt also acts as the valve. This eliminates the need for a stacked tube construction, and indeed spool valve markers are notable for their compact profile. Rather than employ a cycling hammer or ram that strikes a pin valve, the movement of the bolt is controlled entirely by the routing of air into small chambers in front of or behind the bolt. Additionally, there is an air reservoir behind the bolt that contains the air that will be used to fire the paintball. When the marker is at rest, air is routed to the front of the bolt to prevent any of the air in the reservoir from escaping. When the trigger is pulled, that air is either vented, allowing the air in the reservoir behind the bolt to simply push it forward (as is the case in an “imbalanced spool valve” design), or the air is rerouted to a small chamber behind the bolt (separate from the reservoir), which then pushes the bolt forward (a “balanced spool valve” design). In either case, the movement of the bolt forward exposes pathways in the bolt or the marker that allow the air in the reservoir behind the bolt to surge forward and fire the paintball.














(I prefer spool valves)