Hi!
As long as i can tell (and remember), both are identical, maybe developed by differente developers, but esentially they are the same cards...
Lucky you!!!
PD: if you have to choose between one oor the other, it means the other is "free", right?
Maybe that person would consider selling me the one you dont choose??
:-D
Have a look here
Viper/E-MatrixAs far as i understand, one was built by DCE, the other one by M-Tec...
Regards
Sebastian