one of those lab mixers looks very handy Ole...its been 3 or 4 days since i mixed the VDB classic and it still has the milky preciptate down the bottom...ive been intermittedly giving the bottle a shake over the last couple of days but it looks like it doesnt want to go into solution...what is that precipiate, silver citrate or something? do u think my mix is still good to go? should i just pipette off some of the clear solution from the top before coating?