I frequently do back-to-back pulls. The first 1-3 for me don't get as thick very quickly, taking maybe 10-15 minutes to get thick. But for me, pull no. 4 seems to be the magic number. Pulls 4 and 5 get very thick immediately, after only 1-5 minutes. My theory is the earlier pulls bring out more of the toxins into the blood stream, so that the later pulls have a heavier toxin load available to remove.