I went from 21" ubertubines on my 2022 MY to 20" Martians, was super happy around town (way nicer/more forgiving) but also feeling vibration above 65mph on the freeway. I'm heading over to get them balanced today to see if that fixes the issue (for what it's worth, I had Martian mount and ship with tires, Michelin pilot sport AS4, only difference between standard Uberturbine and the Martian tires outside of the size, was the uberturbines have acoustic foam, whereas the Martians do not, my Uberturbines are quiet as at high speeds, but Martians are making noise / vibrating), hoping the balance fixes this issue. I dont notice it around town but super annoying on the freeway.
Side note: I had the Martians shipped with 255 40 R20, and they look a little small compared to the uberturbines (hard going from those huge monster uberturbines to anything smaller), If i was going to do it again i might have asked for the 275 40 R20's instead - i may get used to it though. The 255 40 R20 matches the front uberturbine wheel size, whereas the 275 40 R20 matches the rear uberturbine size (Martians are a square setup, whereas uberturbines are not).