I'd use whichever fits better, length wise, looks nicest... They'll both be as good as each other.
I tend to use Speed Passion on my TC's as they are bang on perfect length and have a nice shroud around them.
In the B4, i've just had a LRP one and it's very pliable. Before that though was a Speed Passion and othere than the LRP being more pliable, was perfect...
