Meteg is a combining character, so you have applied a combining character to a control character (ZWNJ). While of course "legal", it is not at all well-defined in Unicode what that should mean. Other, already defined, uses of ZWNJ always have a base character after the ZWNJ.
Interesting.
I'm just highlighting this observation, in the hope that other, more knowledgeable people will comment on it.
John Hudson
Tiro Typeworks www.tiro.com Vancouver, BC [EMAIL PROTECTED]
The sight of James Cox from the BBC's World at One, interviewing Robin Oakley, CNN's man in Europe, surrounded by a scrum of furiously scribbling print journalists will stand for some time as the apogee of media cannibalism. - Emma Brockes, at the EU summit