I made the switch during worlds...(was a bet)
The GL Saint is very much like an Eagle...
The XXX is like a faster Firebird
The Mercy is a less glidey challenger..It's dead nuts straight inside of 10m, but has an unpredictable fade outside of that.
River is a good straight disc in the lighter weights (I preferred the test material2 version)
Vision is like an Avenger SS, long and flippy
The Bolt is a great straight/skip disc, and good for big d/ if you play the HSS turn right
The Flow is great at carving lines, I love throwing Hyzers throught the woods with it.
The Villian is a great headwind driver, as well as a long predictable fade driver (like a really fast Firebird)
I used the Warship for my straight mid, switching from Rocs..it was the logical choice, if you use buzzes, get the Core
The Pain is a nice skip disc with lots of glide and lots of fade
The fuse is finicky, but your only real option for an out of the box turning mid.
I also used the Sinus for under 200' upshots, because it's a predictable hook...(flys like a pig)
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For my game... All lat didn't work super well. I'm used to a more floaty putter (Wizards) so the Mercy, Pure, spike, and sinus are all pretty useless to me, tho the Mercy is a little more glidey)
I could never get the Fuse to do what it's chart says it will do...and I already have a collection of Rocs that do what I need.
I love their drivers tho, and they are still my main drivers in my bag