Thanks for the comments.
I guess it all comes down to where one stands in terms of increased resolution and if it takes away from the original house sound. It makes me wonder when they advertise it as "more of a modern sound". One persons ideas of more resolution is another persons ideas of clinical. Of course I can't see Harbeth throwing the baby out with the bath water with the XD.
I did think the LS5/5 sounded nice tonally, but I dont think they were setup right. The imaging was not good. There was no real instrument placement except everything sitting between the speakers together, I will probably stop back down to the dealer on the way home and play with the speaker placement. The dealer is also going too get a 40.3 for me to try if I commit to buy one or the other, which os fair. He is just waiting for me to commit. Does the 40.xx and the LS5/5 image well?
What I am waiting on, as an odd coincidence is @paullb comment regarding the Joseph Audio Perspective2 Graphene speakers. I actually have a demo set up for Thursday. I have heard a lot of great things about the speaker but I don't know if they will sound too polite for me. Btw, I believe the Harbeth sound there best on the Tontrager wooden stands.