Anybody tried Maxxis I-RAZR or Kenda Sport radials? Any general opinions on staying with radials when upgrading tires? Most importantly, do the more aggressive tires (either radial or bias-ply) with square-edged profiles (e.g. Razr, Holeshot) make initiating/controlling slides more difficult? I do trail/woods/fireroad riding, just wondering about pluses and minuses when looking for more forward traction but concerned about predictability at the limit (undesired orunpredictable sideways hookup in a slide). I'm not a racer, just like to go fast. I'd appreciate the benefit of your experience on this topic!