I need a advice about how to mix a double decker with normal deck.
I want to use one double decker (52 cards) + normal deck ( 26 cards), the problem is that the double decker looks too new ( the edge is too white comparing with the normal deck).
Do you know how to aging the edges of this cards?
Thank you very much.

If you start with both new decks they should age together and look the same.
Mine do.

I think so, but the material of the double decker looks different. I don´t know why , maybe because they use different material to make it thinner. That is why I need something to aging the edges.
I tried to use a pencil to stain the edges, and it works, but I don´t know if it is any other better method to do it.
Thank you.

When I sit around relaxing, I generally have a deck in hand and am shuffling, bridging, springing... I also don't wash my hands 500 times a day so my decks age and break in rather quickly.

I just got a Phoenix Parlour Double Decker myself. I was going to use it in a closeup effect, but I didn't realize quite how thin and flimsy the cards are... Like paper, pretty much. Far too flimsy to be used closeup or hand to the spectator. Therefore, ditched that idea and switched to a dual deck method. However, on STAGE I think the Double Decker will be fine.