This model was born out of frustration with LiveScribe and their support.

1. On the Echo 2 model the pen top will stick to the pen cartridge and camera cover and pull it off with the top if you do not attempt do so with the a light touch.
2. There are no replacement tops for sale or distrobution anywhere, which leads to the pen cartidge failing early in the case of lost or damaged tops.

The pen is a great tool and simply too expensive to have such a simple part sabotage it's operations. Thus — poof — my first model and feeble attempt to address the issue. This model is designed to have just a little space on the elongated access of the top so it does not pinch open the release latches on the cartridge/camera cover. It is still nice and tight via the other axis so it wont just fall off.

I hope this helps other LiveScribe owners.