Well it's not the hitting that has me worried.
My thought is if my UCA's are able to flex enough to hit the spring that would lead me to believe that my stock UCA's are good for the amount of lift I have. In other words, I still have a ton of flexibility by my factory UCA's. So my thought is I don't think I would need to upgrade to the Mopar ones as of the amount of movement still offered by what I have. I'm not a cheap man, don't get me wrong, I love upgrading things on my vehicles regardless of needing them haha. But I'm just curiously thinking out loud that are people changing their UCA strictly because of the angle or is it because of the flexibility being maxed out at a much earlier spot? Example if my downward droop was only an inch and I could tell that my UCA's were the culprit at that point I would understand that I need UCA's, but if the factory ones are allowing my UCA's to still touch the springs before getting maxed out I should be good right? haha
Hope that makes sense. If it doesn't well dang my bad, I think too much.