i curently have a Bel 955 and it was made in march of '07 (3607). and Ive been looking on here and i find when people list their RD's it says Beltronics bla bla bla then S7 or Rev 6.3 or something like that. help me out here. And i currently read radar roy's review on mounting on Radarbusters.com i hardwired my Rd and it is high but Roy says mount low. Will it still give me the same performance if I use it low? let me know, thanks.