Welp, something happened.
I've been measuring my chest every couple of days every since I started, and it's been 42.5 on the dot every day. Last time I measured my chest was probably 3 or 4 days ago. Been consistent with the MSM and tinctures, went to bed, had a bit longer of a massage session than usual, and went about my day.
Decided to do full body measurements again at end of month just get into a schedule of doing it at end of month, and I measured 43 on the chest. Didn't believe it, did it a few more times, checked later, checked this morning... my chest just grew half an inch in a matter of like, a few days. With no sign of doing so before it happened. Their shape did become a bit more triangular and projected, instead of being the bit more round they were before, but... they're still bigger.
Pretty sure it was from the tinctures and msm, might have been from doing hiit for the first time in months, could have been drinking more milk fats, but either way my chest has gotten even more sore as of late. Still not as bad as when I was first growing, but definitely notable. I'm at a bit of a loss as to where that random growth spurt came from, but hey, it means something in this plan is working. May be my body finally adjusting to it all.