Hello, I would like to ask Jorge and anyone else who uses a brush for agitation if you would please describe your technique. If you have already written about this, then please just direct me to that site. I have found a four inch Hake brush with no metal ferrul and have used it with some success, but I am affraid that I may not have the most random, non-pattern movement yet. I have some streaking in the sky areas that may be caused by not enough randomness or maybe it was the inspection safelight fogging the sheets in the pre-wash holding tray. I did have another tray on top of it, but it may not have been enough?