I replaced the 2.6 on my turbo 800 axys with a powerclaw 3” two years ago. I also put on the pro belt drive gears at the same time. I thought I would see a big improvement in deep snow performance. Basically I noticed no forward momentum different. It felt different, trenched more and seem to work the engine more, but no noticeable performance improvement in deep, light Utah powder. Did basically the same thing this last winter on my buddies 850 doo turbo, replaced stock doo 3” track with a 2.6. Again we thought we might loose some performance. Once again we were proved wrong. Had 3 other doo 850 turbos with 3” tracks. This one with the 2.6 was equal or better than the 3 others with 3” tracks. So I would definitely agree with wheel house, in super deep, dry snow a 2.6” is a very good track, less trenching, more float and a little more track speed.
My khaos is getting a longer 2.6