Consider this, the LS26 is NOT an upgraded LS25MK11, no 25 can be converted to a 26, the 26 is much closer to the REF 3 in fact the 26 beats the Ref 2, ask any ARC dealer.
I have the LS26, it would take a very good deal to make me move up to the REF 3
I have the LS26, it would take a very good deal to make me move up to the REF 3