Changes

- You can change the switch in any moment, but is better when you change the switch make a reset. Because the computer is like remember where was the header of the drive the last time, and it was in diferent places on the 2 drives. If you don't make a reset, then when you make a CAT for exemple, the header of the drive must go from where it was to the first pist to read. And make a horrible noise on the head of the drive and you can like destroy the drive head if you make this many times.