Rick
Axe-Master
Ron has completed the beta on 4.3 and it is available!
http://www.rjmmusic.com/forum/index.php?threads/mastermind-gt-4-3-0-firmware-editor.3713/
http://www.rjmmusic.com/forum/index.php?threads/mastermind-gt-4-3-0-firmware-editor.3713/