We have a 2344 and I guess I'm the opposite as ours handles better with the heads on.It also rides better if we are towing gravity boxes or the flex head with nothing up front,but not as good as with the heads on. I think it depends on a few different factors such as tire manufacturors,sizes and pressures and also the weight on rear of machine(weights or 4WD).I have 4WD(18.4X26,16psi Firestone AWD) which I think balances the machines better.The drives are 30.5X32,22psi Firestone Super all traction.Your speed is also a factor as ours will start to bounce after 20mph. Hope this helps as it is hard get much done or make any money cruising down the road at 15 mph! Just my 2 cents worth. Good luck!