Great Vid. Im glad you said everyone reacts differently. Between Yk, LG, and S23 I couldn't tell a different for strength between the 3. But I reacted best to YK with gains. And I couldn't tell of any gains with LG other than water retention. But S4 the first week or within 5 days strength fast!!!! Plus that is a motivator too to see strength. Those other 3 for me took about 10-14 days before I saw strength