Thanks Mate.
I'm limited on freezer space so reckon that 5kg is the maximum I can keep in the freezer, which makes a good shelfie important. I've not done badly on shelf life's from Alton and The Syndicate. The Rod Hutchinson KMG was a brilliant bait in shelf life.
I do tend to use the throwing stick to put bait out so reckon using frozen to put some bait out at the start, then 'prebaiting' at the end of the session with shelf life, and mixing the two during the session. Normally 70metres is my maximum on the syndicate.