for starters been proven its clone of the magickv , ys a clone of a already cheap chip, extra wires fit, reason for the clsaims of laser safe, laser dieing caused by mchahon crashing, this is being blamed on lower wire chips causing a crash more often, true / false , who knows without extensive testing
as for v12 fix one used rated by pros is summone fix
http://www.ps2newz.net/forums/showthread.php?t=30611