The purple male opened two pollen sacs today. I pinched them off and shook them directly on to the blackberries pistils. Perhaps a bit early but gets them cooking sooner, I’m sure some flew off and worked magic elsewhere too. I kind of want to isolate the blackberry now and only pollinate with that one male and not the green one. It would be easy enough to grab a few more sacs and repollinate in a week or two again. I plan on letting both the purple and green males open pollinate the remainder of the tent.