I haven't come across a taller(___stacked) G's press in probably a year and then some that was legit. The last legit batch were very low and flat, while every higher press(for some reason people like to randomly either call either strong pills or pills that have more a tall shape than a flat shape ___stacks, but it's just a thicker press and pretty much made up by the dealer or the guy that handed it to him based on his minds eye view of what a pills vertical to horizontal measurement ratio must be to meet the arbitrarily chose stack multiplier)
Most people who haven't had a lot of experience might have trouble telling a decent blend of pipes (some pipes, properly proportioned, and cleanly synthed, aren't garbage, they just aren't rolls, while some pipes are just filthy garbage period) with a touch of MDA to give the trip a familiar edge and/or fool a tester, from an actual almost passable dirty synth MDA pill, because of the speedy, longer than MDMA duration of both and the garbage quality. For nearly a decade it is making people happy anytime they don't get an inactive or dysphoric pill, even if it's a wired pipe buzz.
What I see most people doing now, especially in the city, is combine these mystery bombs with all the "molly" on the street in the region, it's MCAT, 4MEC, 4FMC, Methylone, anything that will give an overt stimulant euphoric/empathogenic buzz that someone who wants to double or better their money reselling RCs as an illegal might choose to sell, and it doesn't surprise me that it's nearly impossible for even the people taking them regularly to be sure which bombs are the least bad.
I just bomb MDAIx5/BK-MDMAx6/BK-MBDBx4 a total of 300-400mg in that specific proportion gets me what I want.