As I told you past batchs that were 1ml or so underfilled are still in circulation, and new batchs were always well filled, the fact that you haven't measured any 8ml or 8.5ml prooves so, but as you said some were 9.5ml and some are 9ml that's not 10-20% as you claim, that's 5%-10%; maybe do a remeasurement in 2-3 months when all oils sell out and replaced with new batchs, now we are still selling most of what's available before and after the recalibration.
Making a scene over it is just fucking drama, everyone can measure its own oils and make its own decisions if they care.
You never reweight your chips bags nor the number of your haribo sweets, people don't care simply when it's cheap af, and filled with automatic machines that have margin erros, you might need to make more scenes where it's matters, where you get "non detected" products, garbage "t3 & clen", dermorphin psychoactive drugs and dangerous shit new chinese sources are openly selling here in the forum.
You can't compare us with a few dropshippers of Cock bombs reselling the same shit and getting it like a hit or miss, with a 5-6 lab tests they could afford, while we drop here thousands of dollars of testing weekly/monthly and make our own shit, that passed 3rd party testing hundreds of times, while most of these new chinese failed the very first ones.