that is a large batch if it was from November. i just received mine on the 10th and have the same batch number. im only on my fifth day and noticing quite a difference in my pumps. no other sides or different feeling yet other than the pump though. from what i read should be about week 2 before really having a strength difference. also started test e at 2cc a week for 8 weeks. only going 4 with dbol.for what it is worth (see @Wunderpus comment which I agree) the batch is listed on the Simec result -- it is batch BYA7761