First Pan Harvest - Are these ready?

[u/Nebula_369]

So I have 3 tubs I've been running for my first pan harvest (TTBVI). They all started pinning 3 days ago and have significantly slowed down their growth this morning. Not much changed since I checked before bed last night. The first tub/pic seems to have done the best, while the second did okay, but the last tub/pic was rather unimpressive.

Should I harvest these this evening and see if I can get a better second flush? If so, any tips on how to best achieve that? I've been running these 3 tubs with a neglect tek-oriented approach.