Any issues with water leakage? Roof damage during high wind situations? Also, i believe you aren't technically alowed to do your own install but i know lots of you have. what is the trick? do i order unit (say 622), set an install date, when equipment arrives install myself, call dish to cancel install date, call back to activate unit? let me know what you did. currently already have a 6000 with dish 500 but am dumping both. thanks.