replacing mothers in SOG setup

if i was 2 do an SOG setup how many times would the mother plants regenerate? on average how many times could i collect clones every 2 weeks b4 the mothers start dying and i have 2 start mother clones

thnx in advance
peace

you should be able to keep the mothers alive for quite some time, at then you can pull some clones and eventually replace your mom's with new moms