Thanks for all the links and suggestions. I used the telex on the 200 back in 97-01 and was not impressed by them. Don't remember the model number but I think they were the 750's.
Been using an old set of plantronics on the GLEX for 3 years and they seem to work alright.
Sounds like atrdriver is a 250 hr hired right seat prop driver that might have to earn his dues for a little longer than he thought... Just like the rest of us.