Totally agree with this -- I would add to this statement with: less left and raise the seat if you are needing more sidebite running without prep.
I'd still be on a softer chassis though that's less prep sensitive, (can't believe you recommended Icon over some other PRC products Todd - although if you hit it right, they are bad fast.
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I don't know if the OP (Michigan) is on a Burris tire rule or not, but that would be something to take into consideration as well. I wonder how much testing of new chassis before it's put into production is on Burris tires (or up north in general?) It seems that many of the newer karts are designed around higher bite tracks / Maxxis tires / high cross, etc with the goal in mind to free up the chassis and gain corner speed. I'll add one more thing: You can make any kart work -- some just take more effort than others, and there is definitely more speed in some designs than others.