Yosemite, Tahoe, Jtree, anywhere with cracks
I sport a whole grade harder in these shoes because of their beak-like toe. I got them in 37 and wear a W8 street shoe. I rarely wear these for sport because I find them to be a too toe-smashing (weird foot) and the next size up is too big.. I really wish they fit my feet better because they're great shoes.
I'm the same size street as you. I wear these as a 6 for sport and 6.5 for flatter-flatter footed crack needs. At 6.5 I get a bit of gap in my left heel which is the 7.5, while it's perfect for my right which is 8. I wear the same size as you in Miuras.
But they wear out too fast. I climb cracks about three days a week. I've gone through four pairs in a year and I always blow through the resole period before two months. I developed a neuroma on my second toe because the shoes wore through in three months and the cracks were rubbing against my skin. It would be nice if the rubber covered a little bit more of the toe/side. They stretch about 1.5-2 sizes for me, so I downsize pretty heavily. I would only downsize 1-1.5 for cracks. These shoes aren't the best for edging, especially when they're the slightest bit loose, so on multipitch I prefer TC Pros. I use these for a gym shoe and single pitch trad.
They start out super super stiff but they soften up a lot. At first, you might get stuck in cracks, but eventually they'll soften up and become perfect. They provide a lot of support for long days of cranking and are great for looooong days. They're also amazing for slab. I used to be a moccs only crack climber (even for OW), but now I like these too.
I love these cams. I find their action to be smoother than the Metolius Mastercams. The thumb loop is a great update from the old plungers!