Ha ha, I got it...
Using the GT8 and the Slow gear effect, quite a bit of EQ as well but the slow gear is set with Sensitivity at 47, and rise time 79.
here's my sample...
http://www.box.net/shared/dt7isgqi09
its a little louder than the backing track.
If any GT8 owners can get it closer let us know.
For the record the Preamp was the Tweed, gain 22, bass 83, mid 60, treble 43, presence 7, level 48
and added some reverb and very slight chorus in.