Double post, my bad....
If you go through the full-size Royal line (Griffon, Jester, Jester Pro) and look at what changes as they step up each level, you'll see what I mean...
Griffon: Plastic housings, plastic toe wings, plastic "A-frame" on the heel, plastic track, mobile AFD, 12/13 DIN Spring
Jester: Plastic housing, metal toe wings, metal "A-frame", plastic track, mobile AFD, 16 DIN Spring
Jester Pro: Plastic housing, metal toe wings + little bar between them, metal "A-frame", plastic track, fixed AFD, 18 DIN spring
As far as I'm aware the 18-DIN toe is fundamentally the same as the 12-DIN Toe, and again in my opinion there's just too much plastic involved for a binding that's expected to take the sort of punishment it will get from a rider who needs more than ~14 DIN. I broke 3 pairs of Jesters, and it was never the metal bits that failed, always the plastic.