Digital BW, The Print

I have not been so thrilled with RR Polar Pearl Metallic paper for color images and my box of the material has languished in a cabinet for quite a while. Yesterday I tried it for two black and white images that I just couldn't get right on a couple of other papers. 

WOW! Brilliant whites and deep, deep blacks. I had some issues with too much ink in the darkest places but fixed it by moving the dark end of the levels setting from 255 to about 215. I also had to adjust the mid number to about 1.05. 

I printed the images on an Epson 1400 using the MIS UT14 ink set without the Ebony black. I used printer controls with the gamma at 1.8; 2.2 yielded prints that were too dark. My only complaint is that the paper does not lay very flat and a show image would need either glass over the matte or binding to the backing. 

Has anyone else tried this paper for black and white prints? Is there an ICC for the UT14 ink set floating around anywhere? This paper looks so different than anything I've printed black and white on before that I'm going to have to rethink, and possibly reprint, a number of my images.