i think this has a lot to do with how "cured" the LR is. if it is truely cured then you could prolly put in as much as you want. if it is the normally cured then i would not go more than 1/2 of the total amount of LR you have now. if it is "fresh" LR then i would stay no more than 1/4 of the LR you have now.
i would not add another batch until you are sure the mini cycle if any has completed.
my .02,
G~
i would not add another batch until you are sure the mini cycle if any has completed.
my .02,
G~