RE: Shorter ATA Bows?
Good advice so far. I might only add that I've been around the block a few decades, shooting compounds for 30+ years, staff shooter for almost 12 0f them, so I know what works better and what doesn't. To that end I am 5'8" tall, shoot a 27.5" draw and the bows I choose to shoot are NEVER less than 35" ATA, and usually closer to 38". As the guys said, string angle at full draw means something.
As for side torque from the cable guard, try shooting a Martin X-system, and watch the torque go away.