After putting 125 miles on my pioneer I have found the steering to be very well designed and there's minimal bump steer. Having said that, it is obvious that the positive rear requires more steering effort especially on pavement. Bottom line is that any vehicle of this size will benefit from PS. In my opinion It should be standard equip but seems like all the SxS mfg's are keeping costs competitive by offering it without. I've said before on here I feel there's a very good chance honda will offer it on next years model. And since I have one without, I just emailed superatv asking if they will offer an EZ Steer kit for the Pioneer soon. Reading the reviews of customers who've installed this kit on other sxs's the reviews are all very positive. I'll post back their reply as soon as I get it.