Hey Pudding and thank you so much for sharing your thoughts!
First and foremost, I should have mentioned I'm driving a MK2 Leon Cupra R. The current suspension modes I installed are Powerflex black series anti-lift kit, Hotchkis rear anti-roll bar and Wavetrac LSD.
Bracing - not required in the MK5.
Are you referring to strut bracing or Unibrace? To my understanding, RedRobin's review was very favorable to installing the XB & UB. However, for the LCR, there's only UB.
VWR dogbone mount (it's actually a Vibratechnics part) - It *does* increase noise and vibration. You need to do all 3 to keep that motor pinned, but the noise and vibes are horrendous if you do so, even with fast road spec rubber.
Indeed, that's my understanding as well. And since my car is first and foremost a daily driver, with the occasional tracking, I want to keep it comfortable enough so my kids don't complain when I drop them off to school
Polybushes - Yep, the anti-lift kit is worth doing.
I have the Powerflex black-series anti-lift kit installed.
Leave the rest of the chassis bushed with rubber, refresh with new OEM parts if necessary as fresh rubber is better than 10 year old rubber.
Interesting. So in your opinion poly bushes won't make much of change, compared to relatively new fresh and OEM rubber bushes?