Dye Rotor Virtue CrownSF Spring Finger Speed Feed can reload faster than ever before. Finally a speed feed with no drawbacks. Heavy duty polycarbonate Spring Fingers reload with ease, spring immediately back into position and keep every ball locked securely inside. Feather Light Spring Reload with ease and and never lose paint. The Crown SF is based on the upgradeable finger Crown2 platform and features Spring Finger technology. The Crown SF is the pinnacle of speedfeed evolution. Instead of a rubber hinge, each Crown SF finger is attached to a feather light spring, allowing it to flex downward with the slightest touch and immediately spring back to the closed position. This allows a perfect feed, with no paint loss.