There has been a bit of discussion on how to mod the double triggers on the Kaos in a way that isn't more effort than it's worth. I have a proposition:
Here is the frame with nothing done other than adding a piece of furniture felt pad to limit the rear travel. It actually works quite well for that.
Next I wanted to look at the side-to-side slop.
There's a lot of room in this frame. Not caring if the trigger was slightly off center, I drove out the hinge pin, shaved down a nylon washer, and placed it in beside the trigger. It's the small piece of white you see in this picture. This didn't eliminate the slop altogether, but does give a much firmer feel.
So now what about the forward travel?
You already know that the sear catch requires a lot of room, so we don't have a lot to play with.
I noticed that there is about 2/16" of space between the body of the Kaos and the top of the trigger frame. Also, the nose of the trigger sticks up into this space. So an easy way to limit forward travel is to stick something in there that will keep the nose down by being pinched between the body of the marker and the trigger frame.
I opted for a piece of plastic. I started a little thick and just shaved it down until it fit. I scuffed it and the top of the frame at 2 points so I could apply a little super glue to help hold everything snug during the installation and voila.
I know it's not elegant, but it works and the trigger feels surprisingly firm and crisp for such little effort.
Here's the final result.
I don't know how much play I actually took out of the thing, but it's something.