I might have some knowledge of the subject
weed smoker for 6 years... i'm on probation for a really long time.... I cheat the system by smoking on and off during the month.. i either get tested once or twice in the month by my PO so it really all depends...
Yeah it's like playing russian roulette.
I went 5 years without taking a break longer than 1 month if i recall correctly. Then after I got on probation i started taking regular breaks, I don't even consider myself a real smoker anymore.
honestly, the longest i've gone without smoking weed on probation has probably been around 6 weeks (whoo!) ... and tolerance works like this. People ask if they will ever be as high as their first time...
My answer is No. Weed was new to you.. kinda lik the first time you ever roll or trip or something. there's just something about that "newness" that you wont ever get back.
Needless to say. I can take a hit off a blunt of "dro" or high quality bud, and be BLAZEd.. like im talking full on munchies and shit.. even without smoking for just something around 3 or 4 weeks.
The reason that your tolerance goes up is becasue. It's not like when you first started smoking, when you got high you stopped. (at least for me)
I have really nice friends and they always wanna smoke me down FAT whenever I am able to smoke.. ( i know they're super nice)... So the first day i get back, I'll get smoked up on like something rediculous like 8 blunts or something.
I am straight up STUPID... but i love every moment of it... I feel that there reaches a point tho.. a ceiling to the high that Once i hit it, I don't get any higher.
After smoking 8 blunts the first day back after a 4 week break. I get high, pass out, and wake up STILL blazed. Which is extremely nice lol.
So my tolerance sky rockets (as well as anyones who takes a break) because most likely you are either USED TO smoking your old amounts of weed, or smoking with people with rediculous tolerance.
If you just smoked like hitters after a month break, i guarentee your tolerance would stil be low after like a month or two... It's just how you decide to use/abuse your low tolerance.
I'm at 3 weeks clean right now... Smoke day is coming. soon I'm happy.