@ daveDerek. Yes, Anaxilus has it right. CEE TEE is the man to contact. Great guy! As for their willingness to fly out to NY... don't know, but they are located in the Bay Area, so it was very easy for them. A quick drive across the bridge for this one. No harm in asking. They seem like they really want to get the word out about their products... esp. the UERM.
And as for your request for a comparison review between the UE-4 and W4... Well I'd LOVE to, if only I knew someone who had a set to lend me... hmmmm if only...