Hey, Trim all of the bud off of the clipping. Keep 2 leaves on the clipping. Everything else you are doing is fine. I used to take Cuts at week 4 all the time. See some of my old grows. keep it in the humidity chamber for 3 weeks. Then your good, Vedging will need a bit longer then normal. Your original clippings leaves will probably dry and may have white spots....this is normal. Soon they will burst new shoots and you will be golden.