First time poster here and general newbie to more serious hiking/backpacking. After a decent amount of research and consideration of personal preferences, I've decided I fall on the trail runners side of the runners vs. boots debate.
I've found lots of info on proper fit for boots, but am curious if the rule are a little different for trail runners. I am currently deciding between two models: The Brooks Cascadian 4 and the New Balance MT700.

I have a 10.5 in both, which is my true size. The Cascadians feel great, snug but not tight, and the flexibility of the shoe box leaves me unconcerned about any closeness of my toes to the front. However, some of the better pro-boot arguments did sink in, and I like the feel of the MT700s, which have a stronger front and upper and provide more structured support. But, when my toes come close to the front on those, I'm more worried about the hard shell on the front wrecking havoc on my toes after a long day.
It's my general understanding that trail runners as opposed to hiking boots should fit more snug, because of their flexibility. But, the MT700s seem a little more like a boot than a runner, and I am worried about their fit. I ordered a half size up to try on, but am worried that they'll be too big and I'll lose all that support.
If anyone has experience with either of these runners, in particular the MT700s, I'd appreciate your incite on proper fit.
Thanks!

