I think the fuel cut-off fix works. Maybe my engine speed is not doing what it should do, but I no longer have that bucking/learching in 1st gear that would leave me angry all day.

I would not recommend the trunk/bumper scratch fix. I don't think my bumper is perfectly aligned. The dealer never touch painted the scratches (I will try and get them buffed out) and I think some new scratch marks are before my eagle eyes.