Ok, fine. I read that as well, that going through levels will introduce tier 1, 2 and 3 level LB's available to you, just as there was different level SkillChains you could pull off depending on which WS's were used in XI, I get the idea. But there is still a final result, based on whichever type of chain is used, I really doubt they'd make it so random you couldn't predict what the final result would be, based on jobs, abilities used and such. So this was speculation on what other Grand scale abilities could they come out with, that would either benefit the party as a whole or decimate a monster that we might see from a LimitBreak execution. Not the technicalities of how it works.