>It just didn't give me the "wow factor" that some others have experienced when first listening to them.

Time to try focal clear? Haha. I had similar experience, wasn't blown away, got sundara and then after comparing I realised the beauty of both. 6xx is not fatiguing due to the veil, and the presentation of intimate mids lend very well for simple mixes. Privateering by Mark knopfler is an excellent listen with 6xx. So is pretty much anything with vocal and instrument focus without too much going on.