A lot of people have had tolerance issues with the AL-LAD not because they had recently tripped, but just body chemistry. When I did my 300ug I hadn't tripped for over 2 months, and it was from liquid vials I had made. I asked a lot of people I sold to and my source and they agreed 450ug+ was needed for a nice visual trip. I would just up it even if you did have a tolerance last time. No point in wasting more and being disappointed again when you have reliable evidence that some people just need more. No worries on ordering from Partytribe. He is a good friend of mine, as are most people selling the substance. Rather hard to get a rep over here on SR unless you have some crazy advantage to the other vendors. I believe he is just trying to make a niche for himself. He is legit.