Grimstone changes

I only have two short things to say, I thought the idea of grimstone was great, I also loved doubling the depth of underground. But I would love it if the grimstone was lower, maybe 15 or twenty below '0' so you feel like your mining longer to get to a dark deep underground. And second maybe add pockets of normal stone in grimstone, or in the case of 1.17, layers, and maybe the pockets surround the ore down at grimstone . I love what you guys are doing and keep up the good work!