I started the CT last year with Lowa Renegade light boots.
I finished it in cheap Columbia running shoes.
In the past I have backpacked in heavy custom Limmers.
Although I was initially a skeptic of hiking without boots, I am going to stick to shoes. Much of the CT is excellent tread, but there are also plenty of rocky sections - the Collegiates, Jarosa Mesa to name a couple and my shoes worked fine.
I found that my feet could “feel” the trail much better in shoes. If anything, I felt more stable on rocky sections, since my legs seemed able to “read” the terrain better than when wearing heavy boots. I think heavier boots can potentially protect your ankles but make you less sensitive to your steps. Is that a good trade-off?
I sort of liken it to 2WD and 4WD vehicles. When I am in my car, I am more mindful when the roads are slippery. When I am driving my truck, not so much. And you can end up fishtailing in either vehicle - just like you can roll your ankles wearing boots. In fact, with the stiff footbed of heavy boots, I’m sort of wondering if you are more likely to get a significant sprain if you DO manage to roll it.
I don’t like the fact that shoes wear out more quickly from a sustainability perspective, but as I lighten my load even more, I hope to keep hiking in them.
Paddlefoot