Maybe I can save you a lot of head scratching, ciphering, and consternation. Relevant to what @lee has been pointing out. The whole lift & spacer thing really is only a poor man's means to an end to gain clearance to run tires way bigger than the machine was designed for. A lift in my considerable experience does not make a notable improvement in clearing typical riding situations, spacers really don't effectively enhance stability on a SXS they push the tires out on the front so you have steering clearance on those big ass oversize tires that otherwise rub in OEM geometry.
The width, height, clearance really makes a positive difference in say 10% of the situations and can be detrimental the other 90% especially if you account for added wear and stress on the components. Not to mention maneuverability and added bump steer incurred.
Still there will be those that cling to thier seat if the pants belief that thier $400 lift and spacers make a huge difference, they don't. Now if you spent $6k and did it right with better shocks, A-arms with different geometry, longer axles etc. Then as a whole if designed to work together could improve handling and stability.
That being said, after 3000 miles on my P1K running a 2" lift and 28x10 tires I will be running near OEM on its replacement. I have a 2018 P1K5LE coming this week and will not add a lift, simple switch to tougher tires of true height 27x9 front and 27x11 rear radial Roctane XD's they alone are 2" taller than the OEM 27" rubber but will not require any half assed adapt-o- fit hillbilly engineering ( lift & spacers) to work.
I am a firm believer in the American model of buying all the confidence you can afford, but like all the rock lights etc. It may look great in the driveway but does it really help on the trail? Simply a matter of personal opinion.
As far as tipping point on the fly, use experience and the gray matter between your ears to determine the best path forward giving consideration to how heavy or light you are loaded and cargo. Success and failure is a cognizant choice, choose wisely and proceed with caution. LOL
I'm with you, I added arched arms to get clearance for 30" tires and some extra ground clearance, but I have ridden since day 1 on the factory tires which are only 26" in actual height and I have been able to go anywhere I wasn't afraid to point it. Forgoing mud, I only go through it if I HAVE to, I hate cleaning 500lbs of mud off then cleaning the driveway.
However I have been careful with them and still have some shallow cuts and a pinch. So I have 28" actual height Evos on order, instead of 30" actual height roctanes, it will end up @1" taller off the ground. I want to keep it as close to stock width so if I have to add spacers to the rear to get the stock offset so be it. I don't want to but in theory the only downside is the 4 extra lug nuts I have to check, as the wheel would have the equivalent offset built in if I bought the wheels, but it will be nice to have a spare that can go front or rear.
Shocks are on the way but I am not using them for a lift kit. I am going to try to keep the ride hight the same with the same tires, this thing is a mt goat as long as you keep its tires planted.
It does really well on its own, as a fact you have to pick a good line or its gonna tip or roll, driving style makes a big difference. Watch
@joeymt33 RZR roll video one machine went right up and the second took an awesomely bad roll down and I would dare say it was driving style. Just because the machine can do it doesn't mean YOU can make the machine do it, but with practice and experience you can get to that point.
I would bet Bo Jackson using a wooden bat could still 30 years after his prime hit a baseball further than I could with the best aluminum bat out there.
Knock the rock lights if you want but they have helped me on the last night ride(mine are mounted to actually light up outside the tires and infront/behind them not make the underside glow with the music), makes it easier to tie it down at night, and I ended up using them for visibility without blinding kids with the headlights on Halloween which was not a planned use.