Apparently, Luk makes all these clutches, even the OEM ones. I first had the OEM clutch, then the Centerforce Dual-Friction, then the Luk RepSet. As you can see from my pics, Luk indeed manufactures the Centerforce pressure plate and clutch internals. I'm guessing Centerforce's role is to manufacture the special Dual-Friction surface.
I am not happy with my current RepSet. The clutch pedal feel is way too soft and I am mostly concerned about getting max clamping force (especially considering I'm using 160hp OHV clutch kits with a 210hp SOHC engine, have oversized tires, and I tow). Granted, I just came from the Centerforce, but my '89 Dakota has a much stiffer pedal, and I'm sure the previous owner didn't put a Centerforce in that. In my mind, clutch pedal feel is directly coorelated with clamping force. I've even felt it slip a few times a week after I installed it, which is very concerning.
The Centerforce was a monster, but I don't remember the clutch pedal being very noticeably stiffer than the OEM I first had. So I'm thinking the RepSet is not the exact same as the OEM.
Which gen did you have the Centerforce for?
If you want a Mercedes like clutch pedal, then go with the Luk. If you want clamping force, I was really happy with the Centerforce. If you're in the mood for fabricating, get a Centerforce for a 2003 Ranger (SOHC engine) and drill & tap your single-mass OHV flywheel to accept the SOHC pressure plate bolt pattern. This is what I'm planning on doing when this RepSet gets fried, which I feel like will be very soon.