One of the client concerns always is log as fast as possible with a minimum data loss. So, in terms of redundancy, statistics and accuracy it is better, for example, to do shut in passes above the perfs (spinner calibration), in rat hole. Flowing passes in the whole interval (including rat hole and Perfs). But, How many passes? If you have only one pass, is enough to do a injection profile? or do you need the standard almost 4 passes at different speeds?