I've been using a 165 Khaos, under a 155 tunnel, and agree it's fairly planted and stable compared to the Khaos 155s I've ridden. But shock settings do a lot, and the 165 Khaos can be made playful enough with just a few adjustments. Likewise, the 155 Khaos can be made more planted. Personally, I would leave the limiter strap in the extended position, and use clickers and preload to meet my needs. I'd ride either track length and be happy. I'm curious about the 146 Khaos for getting rowdy, but have no interest in a 174 even if the Khaos rails become available in that length.