The PK that is listed on the MIS page https://www.inksupply.com/roarkslab.cfm is now what we used to call MIS "K4" PK. It is the product that was supplied by Image Specialists and is now supplied to MIS by STS Inks. All of the past MIS UT inksets used this product with great success. This is what my initial beta glossy carbon inkset will use.
Paul
PaulRoark.com -- Paul Roark's Photographic Home