I don't play below 9 unless I'm messing around with something really odd. You can safely assume I'm always in the 9s. I've won 10 a few times at various patch points, but when the balance is reasonable 10 just requires too static of a strategy for me to enjoy playing a lot of. Anywhere in the 9s and I feel I've got a really open field for how I tackle any given game. By way of example, when I returned after about a year, I warmed up on 9/9 and had no difficulties despite including Spire Hard and Golems Medium. And, as I mentioned elsewhere, I very very rarely use warheads. I actually dislike the name warhead (that implies it is attached to something else that delivers it) and I also dislike nukes, because that isn't what they are. So for those purely silly reasons, I just don't even bother with them.