I know of several people that have use bowtie and had no problems.
I have heard and my brother has experienced problems with TCI on breakage, but I know people that have had great luck with them.
He is currently using FLT, he has broke it 3 times, the last one he didn't race or abuse it and it broke the main shaft while daily driving it. They fixed it, but he still had to pay for stuff. He really needs a 4L80E.