get a new one, they're like 10 bucks. they're important because feed level needs change throughout growth cycle. we need to be able to adjust properly.
to me, original pics look underfed. ensure proper wet/dry cycles, and feed heavier next time. This late in flower, just gotta limp her home.
when they stretch, they need a lot of food because typically the soil is depleted by this time. if you can make it through stretch without significant deficiencies, the hard part is over
feed with each watering, with up to 25% runoff.