We had counted Matsui out for the most part, mostly I was frustrated with their awful and confusing product naming. But there was a rep that came out and brought us some samples, we ran the HSA white on a purple shirt job we had set up. The sleeve prints we used the HSA white for made the front and back we had already printed look dull!
Anyway, the stuff is called "301W-CL" (ya, they still have work to do on the names! ) Used a 180S and then a 150LX, but we later printed another job with a 200S and a 180S. We would do a 2sec flash @ 212f and it was good. It does dry in the screen like a mofo though!