Sorry for not commenting on more, I have been working all day. There are some real nice concepts here and you all are amazing. One further clarification is that the X and 7 are equally important in the logo and I see a lot of cases where one is more prominent than the other and those will not work. Also, since my brand is so new people must instantly be able to see that it is X7 without having to think hard about it or be familiar with me.
I have removed the mention of sunglasses in the gig description because I think that will be too hard to make work. Also I realize I have a preference for straight edges on the letters instead of curves. Finally and most importantly the X & 7 need to be balanced with each other. One can't see larger or more important than the other. They need to complement each other and appear as equals.