I am sure its the switch which is faulty. I have tested it in the windows game controller applet and its constantly diving to bottom right hand corner. Also removed the axis in the DCS options and its fine but when I put them back it goes to slewing off to the right again. Sent an email to thrust master for replacement switch lets see what they come back with. In the meantime im going to put the slew function onto the trim POV and use some other roller switches on my strike 7 mouse and keyboard for the trim. It would actually be more realistic.