i own amb system and run rc scoring pro at my track
the amb decoder is the only way to go
now there are 2 good software jlaps and rc scoring pro
jlap is a great software but i have not had much time with it so i cant say much on it
rc scoring pro is not hard to work with but i use to run it on windows vista and windows 7 and it didnt like it as it would crash on me
but now i run it on windows XP and it has been way better