I really liked the map and what you've been doing in the past weeks to optimise it!
But nonetheless I still managed to find some spots which (in my opinion!!!!) could use some fixing :)

Firstly, I would really enjoy if you put a tiny crate or something similar to that behind the A sign in the corner of A-Bridge, since it bugs me that you seem to be floating when standing on top of it (also I'd make it so it's impossible to slide up on that sign - only jumping on top should be allowed, since it could hinder competitive play):

http://imgur.com/a/jBvOp

Second, it looks like you'd be able to strafe from this spot on B over to the two cooling units or whatever they are over there! Maybe that's just me but I'd prefer if the roof they're standing on would be raised just by a tiny bit, so it would be promptly visible that it's impossible to jump on top of the roof ^^:

http://imgur.com/a/xa43j

Furthermore (this is the most nitpicky suggestion I've got), this gravestone seems odd... I guess it's meant to be a nice peeking spot for CTs to use but I'd prefer some other prop instead of this one :) :

http://imgur.com/a/O7CVC

And last but not least for the two major reasons I started this discussion:

The clipping in CT spawn doesn't feel very natural to me, since the rocks don't line up with the clip brushes at all and thus it looks so buggy when running up to them; also they've got a slight angle to them making the player model seem to get stuck sliding up on them a fair bit of the time!

http://imgur.com/a/qONR2

And The clipping on the right side of the T-Entrance on the burnt down house in mid slows me down almost every time I pass it! I don't know if that is due to the wallbrush or the brush of the floor but it's almost like walking through very very sticky honey! (I hope you get what I mean ^^)

http://imgur.com/a/5Uy4O

Other than that I really really enjoy your map and hope it will soon be accepted by valve, you'd really deserve that :) Keep it up!