Puck clutches are typically solid hubs because strength is the primary concern and smooth clutch engagement is not a factor. They are designed for racing use, remember that. They tend to clamp faster and harder due to the design. On the street they typically have lower lifespan and act like an on/off switch and are hard (nearly impossible) to slip. They tend to chatter as well. I drove an unsprung puck clutch on my old T66 MKIV - there were times where it was a real pain in the ass. However on the road course, the faster shifts and harder engagement makes for lower lap times.
Full face clutches are typically sprung hub (i.e. - the clutch uses springs in the center splined hub and a marcel spring between the plates to help make clutch engagement smoother.) On the street they typically have longer lifespans, are easy to slip and are more forgiving to being overheated. A sprung hub clutch with a full face disc will give the smoothest clutch engagement and will provide easy driveability. The only risk is that at high horsepower levels with aggressive shifting, you may break a spring, which is why puck clutches don't have them.
It's generally a trade off - the less streetable it is, the more power it will hold.
The exception is the RPS Carbon-Carbon Triple Disc - it drives like a stock clutch, will hold 1,200 RWHP and will last for a very long time. The reason is the triple carbon discs triple the friction surface area. This has the effect of tripling the torque rating with the same clamp load. This clutch feels like a 400 RWHP clutch but holds 1,200.
But there's a tradeoff with this clutch too - when I bought mine it was well over $3000...
Does that answer what you were wanting to know?
