Hi CJ,
I just switched from angled Sand Geckos (21x11x10) on my Pred to straight Skat Trak Haulers (20x10x10, 8 paddle). The difference was so day and night, that I cannot give enough praise about the improvement from the Haulers. The quad performs like a total different beast in the sand now.
I ride almost exclusively at Glamis Dunes in SO CAl, and these tires grip like crazy. The allow a bit better gearing than the slightly taller Gecko's gave, and they literally launch the quad forward compared to the Gecko's. I have to lean forward quite a bit to keep the front end down. I put the Gecko's on my wife Trailblazer 250, and that is about where they belong. I'm glad I had somewhere to put them so they were not a total waste of money.
The Haulers still allow me to turn well, but a bit more throtle and body movement is required...oh well, so much more the fun of the dunes!!
The Haulers are a bit more expensive, but I really feel they are worth the difference.
Good luck,
JJ