By the way, I have no 1600 AWs
I've got one that's about a year old. Still going strong.
I will say that I like my CGR batteries better. They last a bit longer.
That said I've only used them in VV devices. I am not yet in possession of anything mechanical.
I did take the plunge and got on the Precise ELA pre-order list. When it ships, I'll be buying few new batteries for sure.
So... I'm very interested to know what batteries work best in mechanicals. The MNKEs have been described as holding a good steady output with a sudden fall off... As opposed to the AWs that drop steadily. (This is only what I've read hear on the forums... Of course if I believed everything I read around here, I'd be disappointed that my Provari hasn't blown me, done my laundry or fixed me dinner.)