The CTS is transmitted by the destination node, not the originator of the RTS. .
I haven't seen a post here from GT in quite a while, although I did see him at last years conference.
He added a lot of good stuff here.
The entry from 'deleted user' sounds like one from dave1234, another user that put lots of effort into detailed technical answers - my apologies if that was not him. I know you can still find several hundred of his posts if you search by user name.