I've read a few posts from fellow Geo-shooters who are getting poor efficiency out of their markers so thought that it was high time to create an idiots guide on how to set up your Geo marker more efficiently, so here goes
Now before we get into how to correctly set up your Geo, there are a couple of criteria that you should always adhere to in order to give yourself a fighting chance of getting decent efficiency figures:
- Correct Lubrication. Basically if your Geo is not correctly lubed you won't get as many shots out of it as you could have had. Don't be a dummy - lube it correctly and you're already on your way to better efficiency!
- Paint 2 Barrel match. Although the Geo is an open-bolt marker; correctly sizing the paint that you are shooting to match the barrel that you are using will give you an advantage when it comes to efficiency.
- Climate. Playing in a warmer climate will yield better results than playing in a colder climate (efficiency wise). You're also more likely to get a tan and see scantily clad women so i don't really see a downside to living/playing in a warmer part of the world, especially efficiency wise.
- Type of paint. Some paints chrono higher than others. This could be linked to size, materials used, density, sphericalness (if that's even a word) or any other mystical factors but if you (or your team) is confined to shooting a specific brand it might be worth sampling the paints they have on offer and finding one that suits you best.
- VVC Screw. This Changes the volume of air in the Valve Chamber. Smaller volume = better efficiency so wind this bad boy all the way in to make your marker most efficient.
Still with me so far? Once you've checked out all of the above it's now time to head down to the Chrono with your Geo, at least a couple of pods of paint, your hex keys, loader and a tank full of air (and your goggles of course!) so that you can follow the proceed below to set up your Geo
1. Chrono the marker as it is until you reach the desired velocity; lets assume you want to shoot at approximately 290fps.
2. Remove the rubber grip screws on the right hand side of the Geo and push the set-up pushbutton on your circuit board to enter the set-up menu.
3. Scroll through the menu and "Unlock" the circuit board.
4. Close up the grips again so that you don't loose the three screws that you're about to drop!
5. As the marker is now unlocked go into the DWELL parameter and lower the dwell by 1.0ms from 12.5ms (the factory setting) to 11.5ms.
6. Chronograph the marker and check that the velocity has remained approximately the same.
7. Again go into the DWELL parameter and lower the dwell by 1.0ms.
8. Chronograph the marker again to check that the velocity has remained approximately the same.
9. Repeat steps 7 and 8 until the velocity starts to drop.
10. When you reach this stage your DWELL is set too low to achieve the velocity you require. You must now raise your DWELL by 0.5ms from its current setting.
11. Chronograph the marker again to check that the velocity has returned to the desired value. If it has not then increase your DWELL again in 0.5ms increments until it does.
12. When you are content with the velocity readings, exit the DWELL parameter and "lock" the marker so that you are tournament legal.
13. You have now sweetspotted your Geo's DWELL to maximise its efficiency at that particular Inline Reg setting.