i hope this is not exposing but when i do them they split

Keep the cards close to the deck, so if they split a tiny bit it goes unoticed. And you might be holding the cards too tight or too loose. Try evening out the force you put on the cards. You also might be holding them wrong. It's hard to say by what you told us. There are many reasons cards might split on a DL, the ones I mentioned are probably the most common, especially the holding too tight or too loose.

Oh and if you're holding the cards on the top and bottom edges (4 fingers on top thumb on bottom) don't hold them like that, if you put pressure on the cards and hold them like that they WILL split and it will be VERY noticable. But like I said it's hard to say because I dont know how you're holding the cards, or what you're trying to do.

You might also want to look into a book or video/dvd on basic card sleights. There are a couple that teach various ways to do double lifts. To name a few:
***Double Take by Greg Wilson is on the DL, has all you'll ever need on double lifts.
*The first 3 books in Roberto Giobbi's Card College series contain DLs, although volume 3 contains more information on them than any other in the card college series.
*Basic Card Technique by Richard Kauffman

Good luck with your DL, I hope my post helped.

Thats just my 2 cents.

thanks

Hey you could try the push up DL. It is more difficult but it looks natural and is a good way to display a card. If you dont know of the push of DL try putting your pointer finger into the back of the cards to bend them forward. I hope this helps you.