Great strings! Bought them to try out some heavy strings as I'm normally playing with 8's-9's. I really like those strings a lot, especially for playing riffs. For soloing I wouldn't use them, but as long as I've bought them for fun I really enjoy writing stoner/doom riffs at the moment!
They just fit into my Gibson SG Standard - gauge '15 probably wouldn't. So if you play with Gibson, strings should fit without any need to drill holes, what I definitely wouldn't do.
Mostly tuned to drop A# as it feels best for me - You should go tone up or down without any problems, but haven't tried it out yet.