What I hope stands out the most is that at no point did we consider an incomplete cycle, or stalled cycle, to have occurred here.
no reef cycle stalls, ever, we are all using guess testers just guessing at what bacteria do and do not do, and bottle bac sellers are profiting.
when we trust time and a scale known for fifty years before the internet (submersion cycling time charts from books) we take power away from bottle bac sellers who make us think cycles are trivial, can stall, buy more X to unstall
you stated measured ammonia movement down + time factor, now you’re solving two factors from google cycling chart— strengthening other solutions off the chart to verifiably accurate.
ammonia doesn’t have to reach zero, few testers agree on hard zero. The movement seen for ammonia plus time seals the deal, and even if your ammonia didnt agree, the tester would be wrong and you could still change all water and proceed.
final proof is first added bioload lives. In an uncycled tank first added bioload dies by next day in a cloudy mess.
whats your plan for fish disease prep and control? Before adding fish that has to be pre planned into the starting tank. Nowadays people wait to input fish until 76 days after their last addition of coral or other items (fish go in last, see fallow prepping threads)