Does anyone have any comments on their experiences in consuming concentrates (oils, pastes or whatever they are called and keif)? I assume a vaporizer will not work very well, but maybe I am wrong. Do you just pour some of the oil on the bud? I am developing a tolerance to THC (boy it happens pretty fast like in two months) and wish to increase potency to get back that high. In due course, no doubt I will have to take a break to get my tolerance down, but wish to put off that day as long as possible. Thanks.