thanks chez

pretty sure I've got it now - all things considered postage, packaging, satchel cost and basic PayPal compliance - I'm pretty sure I'm correct when I come to the conclusion that C&S and the flat rate shipping options are about $1 cheaper than Prepaid parcel post - so all is good.

C&S 500g satchel - $7.15 + 15c satchel is still a lot cheaper than $8.25 for C&S - plus I don't have to write out the labels! I hate that part!