I picked up a Koa GS Mini a few weeks ago. I ordered a set of the taylor ebony bridge pins with inlays and wanted to share my experience.
They fit perfectly on all strings except the low E.
For the low-E, the route in the pin doesn't go up high enough (because of the fat diameter of the low E string).
I fixed this by taking a small chisel and just extending the route (the canal in the bottom of the bridge pin that you align with the string) up a bit more to the top of the bridge pin.
I did this a little at a time until the pin fit nice a snug and bottomed out.
They look great and really class up the mini.
Cheers!