I believe I tried it around late 2005 & early 06. I was introduced to both high quality meth and 4-mar in the same weekend.
I obtained through a dealer (friend of a friend) who was mildly knowledgeable of drugs and also owned a test kit. Claimed it did react differently to the right reagent when I questioned him. All of his regulars now opted for 4mar at a minor increase in cost. Everyone said it was better, cleaner and longer lasting.
I felt similar things on both drugs, but 4mar from memory didn’t have that fried almost panic rush state that I get with meth. This becomes particularly evident in three+ day benders. I preferred meth more as I personally had more fun when out with it, but 4mar was probably better at home. I don’t recall 4mar making our entire group get up and dance like idiots at home simply because a good song was put on. I do however recall our group conversations were far more focused and group involved we all seemed to be talking about the same subject matter. Whereas, our group on meth would bounce around from subject to subject, off in tangents and never delve too deep into one thing before moving onto the next.
I can’t accurately comment and how it burnt in the pipe as, I could barely smoke meth correctly back then. Don’t remember it being harsh at all and it exhaled exactly the same as meth in thick white clouds.
Was it 4mar? Who knows, I never personally tested it, but I sure did I enjoy it!