I haven't used XTrain in awhile so would like to incorporate it into my next rotation. I often get bored doing the same workouts over and over so I'm not always great at sticking to rotations involving just one workout set. There are alot of rotations that include XTrain (XTrain + LIS, XTrain + Fit Split etc etc). Which one have you done that gave the best results as in overall feeling good, some fat loss, improved strength and definition?