Polybushed dogbone.

Has anyone fitted both the yellow rear and purple front bushed to their dogbone? How did you find the vibration? I've read a few reviews mainly on the a3/golf and a lot of folk were complaining of vibration in lower gears and reverse. The ones complaining were actually going to remove the front bush to get rid of the vibration so I'm not wanting to waste money on the front one if it's unusable.

I had an a3 8l 20vt before the vrs and has the dogbone fully done with powerflex and it was absolutely fine and I really liked it.