Interestingly when my son had a couple of qoutes for a new tdi clutch neither of the specialists offered a LOF clutch as an option.
Hope it goes well.
Theres a reason for that, mainly driving around on the road with occasional off road (fields/farm land) type activities you don't need such a strong spring set that transfers to much (pulsating) energy into what is a complex gearbox.
You also don't need those forces transfering across to the transmission in general.
I think they possibly have thier place, in a competition vehicle, one with strengthened halfshafts and drive members, pegged diffs and uprated transfer and gearboxes.
In a standard car all they do is introduce a death rattle to the syncho's and selectors. This causes the clients to complain about the horrible noises that wasn't there before.
I didn't see anything special about them, they look like a well made Chinese product with some peripheral Britpart bits to make a 'kit'.
It's not bad quality it's just not neccesary, I made a mistake fitting it in the first place and would urge others not to make the same (expensive) error.