Peregrine 8

Sadly with the 13s they changed the sole, and they just don't have the grip of the older ones. Which is a shame, because they were a great shoe. I went through several pairs before I had to find something else.

I loved the older Peregrine's but the new ones quality is absolute trash. I've moved over to Nnormals and don't see myself going back. Tomirs will probably fit your foot best, Kjerag is more "like" the Peregrine IMO (stiffer foam, lighter) but you may find them tight. Good luck!

I've not worn the 15s, but have worn most versions from the 8s. They're my go to trail shoe ranging from a two mile loop to 50 milers, single day to multi day trips. Worn for river shoes, snow covered trails, rocks, mud, you name it. 

If they aren't working, there isn't much you can do. I find that higher stack height shoes - the Calderas are 38mm/32mm in heel/toe - I tend to roll my ankles more and look for something closer to the ground. The Cascadias are 33mm/25mm, so your foot sits much closer to the ground, and you may be noticing this. I like Saucony Peregrines which are 28/24, about half an inch closer to the ground than the Calderas. Unfortunately, a lot of the max cushioning shoes tend to have higher stack heights.  You can otherwise look for more "stable" and wider sole shoes, but too wide and your gait changes. Or, mid top boots for better stability. You can always keep the Calderas and use them on non technical trails.

Saucony Peregrines wides for long trails 4mm drop. I wear LP for every day wear.

Wide midfoot is a tricky one because a lot of “wide” trail shoes mainly add space in the toebox, not the midfoot. A few models that could fit: **Saucony Peregrine (wide)** Not the widest midfoot ever, but the wide version does give a bit more platform underfoot and the rock protection is pretty solid for technical trails. **Brooks Cascadia (wide)** Often recommended for people who want a bit more stability and protection on technical terrain. The platform is fairly stable for longer trail efforts. For what you described (technical sections + 50K distance + some overpronation), something like MTN Racer wide or Cascadia wide might be closer to what you’re looking for than Speedgoats. Also sometimes runners with wider midfeet have luck going half size up, since it can give a bit more volume through the midfoot area.