The dxt is a little shorter, a-a is 29.75".

I haven't shot the switchback but two of my buddies own them and love them, in fact one of them got a drenalin from his wife for christmas a year ago and still hasn't set it up, I don't understand that but he says he loves his switchback so much he's in no hurry to change what's working for him (3 P&Y bucks in 3 years). I've heard the difference between the dren and dxt is small, but most people who are used to the switchback stay with it.