Love entry #7! Would love to see what we can do more with that one... Green line thru the A is a little hard to see but it works. Top runner right now and I'm not sure what else we could do similar to it.
I like entry #4 better than entry #3 because I think 3 makes it look like a company ALGN with a squiggly in the middle. I really like the idea of having the I different. Only thoughts on that are: if it is that green it can be kind of tough to see and secondly I think in the example that the I looks too much like the curves of the spine and I'm not sure if I like that or not, leaning more towards the not.