I wouldn't eyeball this. Luckily the site we use sells in 50mg bags which is handy for harm reduction.
I do think that the search for the "new meph" is over. A lot of people in my area have simply become bored with straight empath stims like Meph and are looking for something different which is why aMT is being mentioned a lot around here. There was a lot of buzz around here about 6-APB but a lot of those dud capsules and powders have been floating about (admittedly pellets have also been around) so most have written it off. I think I was the first in my "group" to source aMT online and a few of my close friends have tried it with me when I've bought it in the past and all loved it.
We get freebase btw, what's everyone's preferred dose with freebase?