I exhaustively tested the Sole & Ibex over the weekend. I don't think either will make my bag in their current forms.
The Ibex, while a somewhat glidey straight-flyer with predictable fade, needs too much launch speed for me to be comfortable with it as a mid. Every time I tried a finesse shot with it, it would never glide at all & just immediately fade hard, coming up woefully short. If, on the other hand, I gave it the full treatment, it flew beautifully, oftentimes too beautifully, overshooting the mark. It would be useful for only a small subset of mid shots, those where you have to give it a 85+% huck and have no trouble at all behind the target. As I already have a Gremlin that can perform that shot (and a lot of others, as well), I have no use for the Ibex. I could see how others would (John Biscoe loves it), but not this guy.
The Sole is a delightfully floaty flyer. If released cleanly, it performs well as a nicely straight uphill & flat-ground putter, falling in flight somewhere between a Ridge & a Summit (much closer to a Ridge) for me. It really shines on drives, holding any line given it & keeping it even when the slow float kicks in. I could see it in my bag except for one problem: the release for me is woefully inconsistent. I lined up stacks of different putters (Wizards, XDs, Aviars, VPs, Ridges, & Summits) as well as two Soles. Putting at 50-ish feet I had a clean, crisp release on every single throw with the other putters, but on about 35% of the Sole throws, the disc came out all wobbly & anemic. This result held up over several hundred trials. My guess is that it is an artifact of the material (I prefer extremely soft putters & the Soles I have are hard-ish), and I probably need to retest when X-Link soft Soles become available. Until then, its long-range duties will be fulfilled by the Goblin in my bag (which also fills in as a mad uphill/tailwind putter) and the everyday putting role will stay with the Ridge. More to come if/when I ever get my mitts on an X-Link soft Sole…