In special cases where the cycle can't be estimated or copy process times are long, a script could query the Snapshot CoW usage with lvdisplay and extend the lv on demand.
That got me to the "RTP" or "release to production" stage. The production people oversaw a copy-editing cycle: ironing out spelling, grammar, punctuation, and inconsistencies.
Someone gave me a copy of "Three Kingdoms", told me: life is not only in the willful and radical in the cycle, there is time to look at classic and purify their own hearts.