it's best to complete the job and not leave it partially strung for any "lengthy" period of time. i will pause for a few minutes during a job but i'd never leave it to come back to later.
puts funky stress on the frame for too long, IMO although likely it will not be damaged. just a bad idea/practice.
Microgel Radical MP (5), Cheap 16g Gut/ RedDevil 1.19 - 56/54# (among other setups)