As I said, haven't tried it offroad to see if there's scraping, but no issues waddling around jumping kerbs and stuff so far, I'm not expecting any nasty surprises when I leave the pavement. Pulling U-turns and stuff doesn't cause any scrapes like it did before the lift. I did about 50k kms unlifted on them, so it's not like it was scrubbing badly anyway.
On the 265s speedo isn't that far out anyway, basically if I line the needle up between the 60mph I'm sitting on 100kmh, so you're talking about 3kmh out. I usually sit with the needle edged between the 60mph and 100kmh and haven't been pinged by the overheads yet. (your mileage may vary...)
Pic is after the lift has settled down after about 6 months.
(don't mind the front bar damage, wrote off a Lancer on the freeway...)