It seems you've been given all the advice you can probably deal with so I won't add much.
Other than to say that once you start playing with different spin you may come across the one *** (censored by WGT for being an offensive word for a Chinese person I assume) in the ATV's armour, top spin. When I used the old Cleveland wedges I could use full top spin to get an extra 5 or 6 yards out of them with neutral wind. The ATV struggle to go more than 2 or 3 yards further, even with full top spin.
It's not a good enough reason for me to consider changing them as I'm more than happy with them but I'd like to be able to overhit them a bit further.
I cannot comment as to how many extra yards you can squeeze out of the new Cleveland wedges as I've never used them but I assume it will be the same as the old ones.