Just looked back at my last speed figure for Ballyadam, gave him a 61 for an easy win at Down Royal, gave him 62 today for what looked a slowly run race, I'd imagine he might be a low 70s horse at best on my figures when in a truly run top level race. For reference I gave the Juvenile an 87 today.
Also my figures for recent Supreme winners & their best figure leading up to the race(presuming he goes that way):
Shiskin 80 - 75 (not extended)
Klassical Dream 81 - 78
Summerville Boy 82 - 82
Labaik - 86 - mainly refused
Altior 94 - 94
Douvan 103 (highest figure I've ever given any horse in any race apart from another 103 also for Douvan!) - 79