Sorry I didn't really address that properly. I didn't know about it until now, since I didn't know you could test a single mouse in that program, and I couldn't tell it was happening in game. Unfortunately its like I said in my last post, it needs a new PCB to change how it works.

Hi,
Thought I'd post here since theres some discussion going on.
I just wanted to say that the 50ms delay between clicks is to ensure the switch operates properly, especially as it ages.

Have a look at this page, under "Programming hint: Preventing problems caused by chattering":
http://www.renesas.eu/edge_ol/engineer/16/index.jsp

Its something the factory done without me asking, a Shootmania player found it, because he couldn't do the microjumps (which you need to do a fast double click to pull off). Since it only really affects that game, I decided to leave it (it can't be changed now, unless I disable it in future production), I thought that better "behaving" switches was better for more people than double clicking faster than 50ms.