I was hoping someone with more Tiger experience would answer. I have the bolt on traction masters. I left the front spring clamps somewhat loose (used nylock nuts) to let the front of the traction bar slide instead of stiffening the spring rate. I originally had them clamped tight and the rear suspension was very stiff.
I found they make a little noise. I have not pushed the car hard so I don’t know about the performance benefit with and without the traction bars. I have read the weld in traction bars can rip the weld out. That’s why I went with the bolt on type.