Do I sound like kinda of geezer to be getting my shit down the local boozer and paying fifty quid for a baggie from brutha from rasta??? 
Trust me shit i get is pure fucking Colombian, not even white, got that pink champagne color, best of the best. 
And like Wes say I got fucking huge tolerance to stims, did all this shit throughout my twenties, 3g ain't shit, it's child's play.
I have easily gone up to 6 before no problems.
Just look at my fucking nose! Nose of a pro! 
There is nothing heroic in doing 6 grams of coke. Mostly because the way you do it isn't getting to your bloodstream anyway.
But even 3gs of quality coke to 1 person is OTT - first of all - it's a complete waste of most of the gear. Once you are say a gram and a half in, you are not getting any appreciable buzz - you are just fending off the inevitable come down. It's chasing that first line feeling. You no longer feel good and you absolutely look like fucking shite - bulging eyes, sweating sallow skin. Night has to end though - all the coke does is delay that inevitable end.
Your nose is gunked up too, so unless you carry a 3ml syringe, mix lines with water and shoot it up your asshole, then you won't be absorbing it efficiently nasally. Aside from the gunk, the capillaries in the nose/throat shut down -absorption through that route slows to a trickle. That's why you lose your septum - continually cutting off the blood supply to areas of the nose for extended periods. If you do go anal with it, then you can of course prolong the buzz longer but have a much higher chance of an OD. Of course, the gums also work but then your teeth fall out because of gum necrosis.
So 6gs up your nose in a night. You are putting it in your body, without appreciable effects - that's where smoking it comes in. You don't have the issue of your nasal capillaries being shut off.
Then the next day - first of all your nose is all shitted up - sure, a long term user knows that sudafed will cure this - so your nose might be OK but the next day you will feel like dog shit. You will be inoperable. To be in that state 3 or 4 times a week will effectively mean you cease to function - you are either on drugs or getting over drugs.
So sure - you might do some charlie - but really 3gs a day, 3-4x a week - you would be severely fucked up. Nothing to do with tolerance at all. You would just no longer be a functioning human being. Your state between binges would be pretty poor indeed.
What an utterly shite drug it is - sure - 2-3 hours of feeling great then 5-6 hours of consuming it to stop feeling like dogshit. Then there's none left and you feel like dogshit anyway.
Then there's valium...
