Just ordered a replacement set of Z freeride ( the cheaper version) from Evans , after my last pair where a bit hammered after 6 odd years of abuse. ( could have serviced them , but had some spare cash in the paypal account needing to be spent.)
Did the order and collect, when I pick them up, I find that the distributor RJ chicken had sent out the dearer Z strongs ( as an upgrade) with a sticker to that effect on the box.
The Strongs are a bit more cut away , and have a little screw to allow 3 cleat tensions too..Happy days!!
I have time on all my MTBs , they do last forever.. got some 11 year Aliums on the commuter still going strong.