As I understand it, the Iwis chain manufactured for Rollmaster is unique as it's stretched at the component length rather than a bulk length of chain, per request of Rollmaster.

I do believe the Rolon gold chain is better than their standard chain, but from the research I've done, does not seem to be on the same level as the Iwis made for Rollmaster.

Just my opinion.

If someone wants to test a new Pro-gear/Rolon gold setup on a solid roller Hemi as I am putting together, let me know and I'll send you the one I have.