I'm rebuilding the top end on my YZ450 that already has an MaxPower RPM 488 kit. When I called to order a new piston kit they said they were out of the Wiseco 488's so were sending a CP instead. Now that it's arrived I'm holding the new and old side by side and the new CP is clearly 3mm thinner from face to edge of skirt. Is this a concern with longevity in mind? Does CP have as good a reputation as Wiseco? And should I send it back and insist on replacing with exactly the same brand as they originally used when they bored the motor?