Stevie,
Try the red venom mixed with cooked particles. My mate and me whacked about half a bottle of the stuff in with 2.5kg of hemp & 2.5kg of mixed particles into a 10 acre commercial water and had 60 fish between us in one night, really seemed to get them going.
On the PVA subject, i have made a few bulk liquid attractants by mixing mollasses / CSL (50%) nutamino / multimino (30%) and whatever flavour you want (20%) it. Its "ok" in a PVA bag, but the bag tends not to melt fully and you get left with this horrible sticky goo! try it in a baitboat or spod its very good and puts a nice thick layer of attraction on the lake bed.
I have also tried mixing certain flavours with Geletine. It works best when you get the mix thick but not to thick so it sets, nice little edge, try it