Did you have to do anything special to install the MK6 B8's on the MKV or were they just a direct replacement, etc.
Direct replacement. MK6 struts,shocks and brakes are all interchangeable.
I see you changed your post to 19in wheels. Probably a bad choice for shitty roads. Tires are a huge part of your suspension. 19in tires with a short sidewall like that will ride rougher even on stock suspension when it comes to poor roads. Even I wouldn't go with 35 series tires where I live. If anything I would go to 17in wheels with 45 series tires for the best ride.