Heidi, the loose flocking I have used always seems to be clumped together, but it didn't seem to matter since I thought, to apply, your suppose to rub it around the place you are to use it---so it kinda breaks it up......though I am not sure if this is actually the correct way to use it.
I have used loose flocking and flocking sheets with double sided stickers (I guess you call them that) and that worked really well. I often forget though that I have the stickers to use....or the stickers will not be the style/design I want to use.
I have not thought about using it with pigment ink! I have always applied my sticky EP with Versamark! I totally have to try pigment ink now..... I have mixed result with using the flock with sticky EP---sometimes the flocking really sticks and other times, not so much. I guess I need to practice more with the sticky EP...I cannot seem to get the hang of it.
I am interested in how others use the flocking!