If that is CO's range then he must be the worst player in the world. MP+1 has just gone AI for 4.5bb and you think CO will consider folding 66, AT, A7s?
I mean, the correct gii range for CO should be around 15%, possibly higher. To give him 7% seems nuts.
It's certainly tight, but I've seen him show down nothing but strong hands (SAMPLE, I know), he may not fold 66/AT/A7s, but even if he doesn't fold those particular hands, and a couple more pairs, it doesn't change things for us a great deal (we can maybe add like AKo, AQs and 99 to our range).
Also, like I said before, I like to assign shoving ranges a little bit tighter than they might be to preserve some edge. Calling off a perfectly good 9-10bb stack here to make 0.1bb would make no sense and it would be even more of a mistake if we assume a player is shoving redic wide when he isn't.
If that is CO's range then he must be the worst player in the world.
Also, its 180 mans, so this is more than likely
