I'm happy with the budget-friendly RAM clutch that's in my Monte, but it only has 2K miles at most on it. Who knows how it'll be in 20K? It should be fine, I don't beat on it ~that~ much.
Also, a friend of mine has a Centerforce in his T56-equipped Monte. The pedal feel is great, even with his mechanical linkage. Grabs very well. They're pricey, but worth the $$.