Hemochron Signature Elites for PT/INR

Hi everyone!
We are currently interfaced with UniPOC for our i-STATs and have need from certain departments for a POC PT/INR cartridge. Unfortunately we cannot guarantee that said departments will abide by the intended use of the cartridge. Therefore, as many of you have done, we are exploring the idea of using Hemochron Sig Elites for the PT INR cuvettes. If you all that have been through this don't mind sharing information as to any obstacles in interfacing the devices with UniPOC, I would appreciate it!