On the Soloist Channel with the 1721 soloist guitar, you have the Sforzando Vst plug-in loaded in the first slot. Remove the plug in to hear the RealTrack.
HEY! PRESTO! That's it. I thought it was something along those lines but couldn't work it out.
Initially I right-clicked the Guitar track and chose Select Midi Instrument > No MIDI track, but if I'm understanding you correctly I could/should have gone to Plugins and set the Guitar3 Plugin to "None".
Does that sounds correct? I mean, I can hear the realtrack but is there a more "professional" way to achieve what you've suggested (I think I'm saying 'Am I doing it right?')
BIG THANKS!