I used a grill lighter and burned the end without the wick sticking out. I found that this melted the wax faster and I didn't get any discoloration from the burning wick. After the wax was dry they looked very nice. you could see the little sparkly flakes in some of the colors and they looked really good.
There's a reason why the expression is "break" the seal - the chemical composition of the wax should be such that after it's completely cooled, it's rigid/brittle and breaks crisply. This wax, however, remains flexible after it is fully cooled - this is what is causing other reviewers' problems with having to rip or cut the document that the wax is sealing. For my purposes, this crisp breaking of the seal is important. And it's just one of the fun things about wax seals.
The viscosity also seems thin, causing the melted wax to spread out too much as you're dripping it.