Poundland fish pellets

Hello all

has anyone tried fishing with these pellets availible at Poundland, £1 for
500grams? worth a try and if so if the pellets are about 4mm what hook size
would anyone reccommend ? .

Also how long should i leave them in the pellet pump before I start fishing
with them as I am struggling to get the pellet to stay on the hook

With a pellet band do you treat the pellet first or put it straight on the
hook to last longer in the water

thanks for any advice
Glenn