We have all heard how good the AT-5555n2 is in stability and clarity which had me almost ready to buy one until PA messed around with the Hands Fee law so now because of it I am thinking of the AT-6666 so I could use a President BT-Mike with it. So I would like to hear from the experienced operators a comparison of stability, receive quality, and clarity between these 2 radios. My only other option would be to find a way to improve the receive on my Lincoln II+ because DTB Radio did a fine job of aligning it and it sounds great also. Plus the other sticker is the AT-6666 Pro isn't out yet for a track record. Have at it ! LOL