I may still go Ali fw.
Seems to give a noticeable improvement in responsiveness and makes the car lighter on its feet..
I do very little sitting still idling - the time when you hear chatter. By dipping the clutch the rattle goes away anyway. There is still chatter on the steel SMFW but not so bad..
Here is a car with spec stage 3 and Ali fw. I contacted him for feedback he has put 40,000 miles on this setup and loves it - I think he also has RBs
2008 E90 335i LCI M Sport / Manual / Black / Red Leather / Avon ZZ5 / VMR710
Mods: JB4 G5 ISO / BMS Back End Flash / BMS DCI / AR Design DPs / ETS FMIC / Meth Injection / Spec Stage 2+ Clutch / BMS OCC / Cool Carbon Brake Pads / RB PCV Valve / Forge DVs / M3 Control Arms / Bilstein B4s / Eibach Pro Springs / Eisenmann Race
Wish List: LSD