I seem to remember reading that no horse rated over 136 (Not 100% sure of that figure.) has ever made up into a champion stallion. If that is true the prospects of Frankel replicating his track career in the covering yard might not be too great?
As an arbitary number assigned to a racehorse can have any useful correlation to success at stud?
How do you define champion?
The chance of Frankel replicating his track career at stud isn’t likely for the sole reason that inate racing ability as a pecking order doesn’t translate itself to the same pecking order at stud.
No one knows how Frankel will do at stud, and no one has any useful data to really project any realistic success. Perhaps we should wait 5-6 years instead of inane projections.