OMG what a huge difference. I know I saw a thread about this earlier but I had not done the 2.20 patch until recently. I now have my DT25 master cranked to about 2 - 3 oclock and, using the master on the HD500, I can really get some nice organic tones without breaking windows. This amp and board combo really is amazing. I wonder what would have happened if line 6 would have done this in the beginning. Its like its a sleeper now and with the new stuff coming people may never know what this setup can really do.
Just my thoughts.