Can't wait to hear how you get on with them. As someone else said - be interested to know whether they push everything up (creating the old 'muffin-top') or just squash it all in.

You said you got them on ebay - did you have to bid for them or did you just buy them from a company (sorry to seem a bit 'dim', but never used ebay so not sure how it works

)

Anyway, good luck with them - let us all know what you think.