I'm still on the fence on which coping style I want for my pool. My contract includes flagstone coping, my PB gave me a sample of "Red Mountain" and "Bouquet Canyon" flagstone to check out. Any thoughts on the quality of these stones? I have concerns that the coping edge will be sharp and uncomfortable to lean on, especially in the spa. Do builders/installers normally smooth out the edge of flagstone coping? For those with flagstone, do you guys have any regrets and or issues with it being uncomfortable? Thanks all!