As far as I remember in discussion with Denny, the length of the braid or where it is are not important. Wort will not enter your braid at the far end and travel all the way out of your tun through the braid. The only important part of the braid is the last bit before the valve, anywhere else, the wort will likely flow into and out of the braid. Also, when I commented that mine had been crushed, I was mainly talking about at the connection to the tubing leaving the tun, and the concern was actually the tubing getting crushed, therefore shutting down/off the out flow from the tun.