IMHO, the original quality of the buds was much better before you got your hands on the MexiBrick. I'm sure that the unpleasant experience we get with it is from THC degradation, and improper drying and curing. Most of it is quick dried then vacuum packed retaining moisture in the cure which will cause mold and shitty taste.

So.....Grow your own (be sure to include plenty of light leaks so you get a hermie for seeds), harvest early, quick dry for 2 days, then lock in airtight baggie (suck so much air out it flattens everything) for 8 months.

When you come back to it, it should be about the quality you were used to getting "back in the day".