Share 'Question on using double molds'

I was thinking about trying out this double polycarbonate mould from Chocolate world: http://goo.gl/UaJo6 I'm familiar with regular (single) moulds but I've never used double moulds before. I was hoping someone could give me some pointers on how to use them? Do I simply make hollow shells in both moulds (just like with regular moulds), then fill both halfs with a filling and then put them both to…