I went to a set of Zulu 2's when my BoseX couldn't handle the R985 up front. No complaints about the headset and the service was great when my ANR box packed it in out of warranty, it got replaced free of charge! Though the only thing I've noticed about the Lightspeeds vs the A20's other mates have is that the cord shielding ends up brittle after 4-5 years of commercial use.
If you can make it to Avalon I'm sure there'd stands with all headsets for you to try out.