IFS, I'm highly suspicious that you are real_red_wagon using a penname. He's all about the IFS.  No, I'LL NEVER DITCH MY SAMMI.  SFA is my thing, I'm an old school guy, a Zuk purist if you will.  But each setup has it's advantages.  It'll take a ton more work to get your IFS rides as high as my Sammi.  Just two nights ago the real red wagon had to stay home because our normal access to LMS's regular muddin grounds was blocked and we had to go over a downed tree on a different trail to get in.  But i'm not knockin' his (or anyone else's) Trackick.  We're all Zuks.  I love my Sammi, he loves his Tracker.  He's a little more comfortable and roomier in his rig, and claims better articulation.  But I digress...the more zuks we have around the better, whatever type.
Oh, and you wanna see tearin' it up, come see me, real red wagon, and real red Sammi in action. Tracker or Sammi, LMS makes it HERT!