from Zu Druids to....

with all the talk about Zu's new lineup I thought there might be some experience and thoughts about the upgrade I am contemplating from Druid iV's to Audio Note HE's. Anyone done this? I am running my system with a 300b set amp plus tube preamp so need high efficiency. Plan is to listen first - probably in the next week or two. The Audio Notes are quite a bit more expensive and the Druids do a lot right so not sure this is a going to be a clear cut decision. Have considered lots of the alternatives such as Definitions, see even a deal on the discontinued Essence's plus a variety of horns, etc.