TCS off greatly improved the shudder and clutch slipping when taking off from a stop for me. Since 12b37 this problem has been seriously annoying but havnt brought it in to service dept yet. Now with this TCS off the car is much better to drive. Before 12b37 the car was perfect shifting gears, almost seamless shifts and I never turned TCS off before either.
IMO its not the TCS that's flawed; its the software update 12b37 that caused it. A new update should fix it or if Ford would let us roll back to the previous DCT update that would work too. Hoping this find will help them to get us a fix soon!