Just a heads up here: The Z-man Grubz 2.5" and other Z-man variations sell for $3.99 (US) on tackledirect.com (they are based in the US). Purchased a couple of packets from them, with only $7 shipping too. I have no affiliation with the store.
Haven't had any luck with finding the Z-man Curly Tailz 4" at a reasonable price online, none of my local stores sell them unfortunately, including BCF.
'Yak PB's: Flathead - 51cm, Flounder - 30cm, Tailor - 43cm, Bream - 28cm, Snapper/Squire - 32cm, Whiting - 33cm, Australian Salmon - 55cm