Ask and ye shall receive
Guess I can buy a new minion DHF and run the high roller on the rear.
The Minion DHF is a way better tread design... even as a rear tyre. In fact, I have it on good authority that it is the DH tyre of choice for many WC riders... and lots of them ride Minion DHFs front and rear.
In fact I've got 2 brand new Minion DHF 2.7s sitting in the garage waiting to go on my DH bike for France
...although they wear quite quick on the rear so it may be a costly combo for us non-sponsored riders ... Minion DHF front, High Roller rear is the longer lasting option