Front of sled sits high due to fox zero pros and no sway bar, but steering effort is a little hard but no big deal, I do have holz spindles. Just seems that when Im in powder and let off the throttle front end dives more than other sleds.
A couple things can cause that..... the first is the 'torque unloading' as you let off the gas, the backshift of the clutches will act as an engine brake and transfer a lot of the weight forward again giving you a tendancy to dive.... This motor offers a significantly higher amount of torque making the engine braking that much more noticeable, Especially if you are running a non-stock helix.
With the zero pros you can crank up the front spring preload a little bit to help minimize the dive and let the limiters out all the way (sounds like you already did that). As Z-Man said, there is a fair amount of weight on the front end of these sleds due to the motor, I believe the motor itself is close to 20 lbs heavier than the newer 800s if I recall correctly.
I would be hesitant to try longer limiter straps personally... you may risk stabbing the track.
