A 30amp linear discharge for 570+ seconds would be 4750 mah out put so I don't think that's the method being used. If so they would be able to advertise them as 4600's !
A 25 amp linear discharge for 570+ seconds would be only 3958 mah out put so that would be low on the capacity.
I think they have their own matching system. So comparing cells done on CE equipment to those done on other proprietary equipment is very hard.
Best thing to do if buying the LRP batteries is to compare all LRP batteries to each other find the best pack in that group.