It took him 60min to kill all three KI NMs excluding Briareus. If we're lenient and assume 10min fight for Briareus, that's 70min. If the helm distribution is 50% (Assuming 1-2 always), it's an average of 1.5 Helms per Briareus. Fifty divided by 1.5 is 33.333 (Lets make it 33 to be easy). It's 70min per fight and you need 33 fights, so you need 2,310min in Abyssea. If you divide by the number of stones (Max sojourn is 48min per stone), you're looking at 48.125 (49) stones. It's a miserable amount of time to spend on one half of a trial, but I suppose it's not that bad.
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