Thanks for the offer of the slugs, but may I please decline the offer my garden is doing quite well without them, but may I offer you plenty of caterpillers instead, these can be sent free of charge.
Elaine
ps, it was the August issue of the mag, I've just hunted it out. The bran got 9 out of 10 for effectiveness, coffee got 1 out of 10, garlic granules 8 out of 10