Just cracked open my second order of MTS test e 300 and the difference in the pin is night and day, first batch had a bit of a sting to it and these new vials go in like water. Nothing else changed, same delt, same 25g, so its got to be the brew itself. Got me wondering how many of you actually track this stuff batch to batch or whether im overthinking a bit of pip. I know the smoothness mostly comes down to the carrier oil and the BA content rather than the actual dose, and MTS have always been solid on dosing for me, bloods climbed exactly where id expect last run. Anyone else compare their vials order to order or do you just pin and get on with it?