[Sandwich]

I'm having trouble seeing how this will work practically.
These guys, who are asserting that Pokerstars more often than not deals suckouts on the river are supposed to GUESS what the river card will be? Seems asinine. Are we expecting them to guess suckout 100% of the time, or they have to guess which ones will be suckouts and which will not?

Wouldn't a better way of rebutting them be to have THEM pick a sample of n hands from hand histories and bet them a large amount of money that the hands, grouped by percentages, stay true to their percentages (within a certain confidence interval) over that n number of hands?

For example, 70-30s will get sucked out on 30% of the time... not more, as these guys would argue.
60-40s will get sucked out on 40% of the time... etc. etc.
?