Heavily considering your last three mods: RSB, UB and DSG tune. I am currently APR Stage1. Car will likely never see a track, just would like less roll and tired of DSG issues. Probably dont "need" any of it, but just want to spend some $$.
What rate are the springs you got? What were the rates of the springs that came with the coilovers, and why did you opt to change the rates from what the coilovers came with. Did you just change up the front, or just the back, or?
They're 280 lbs/inch. The springs with the coilovers are progressive. Dampers are 340. The H&R springs that came with the coilovers collapsed on themselves. There's a whole thread on it, suffice to say that H&R are selling defective stuff and many people are facing the same problem.
I've always been unhappy with the progressive springs and how little travel they have. In short they're more low/show than performance oriented. So it was a good excuse to swap them out for something linear.
Going to change both eventually but starting with the fronts.