So I recently picked up a 9ft GC1 I want to refinish and the Monarch Superspeeds played really slow, so I am going to replace them but I can't decide on the Artemis K55's or the Diamond K55's. I know the Artemis are the best cushions available, but I also know the Diamond blacks are good cushions and over $200 more affordable than the Artemis. So I am trying to find out if I should save the money and get the Diamonds or just Buck up and get the Artemis... RKC did tell me that the rails will have to be re calibrated for either cushion. Anyone have advise on this I would appreciate it, thanks...