A six day break will do nothing for your tolerance except for the first time you smoke. It will be more of a rush at first, but that's about it.
I took a t-break for three months... worked out heavily, went for long runs and walks, ate healthier, and I was thinking when I go back to smoking I'll be able to keep my usage down to a minimum like my early days. WRONG. The first night I did get extremely high off one bowl, but on the second night, and third night I went back to packing consecutive bowls like I was before my t-break. I think a lot of it has to do with how your mind perceives the effects of weed on your body. When you were younger or just began smoking I believe it was easy for many of us to get that "I'm too high, I'm gonna die" feeling. After being a regular toker, you lose this mentality imo and you are then willing to smoke more.