Nothing real specific. Start low, try a little and add more if you want. You can always add more, but it's a hell of a pain in the neck to take it away...haha! DAC is strong stuff but it balances the virginias very well I think. People on here say 5 to 10 percent, but lately I've just been eyeballing stuff rather than throwing everything on a scale and getting it extremely precise because I personally believe there is too much variation with water weight in differently cased shredded tobaccos for blending by weight to be a good option for me. If I can get a good idea of what a decent blend looks like (the pre-blended ingredients in seperate piles), then it is easier for me, personally, to reproduce it. Plus, it's MUCH faster for me to blend by eye. I can just throw a very small amount of each tobacco together, see if I like it, then reproduce it on a larger scale. This technique has worked very well for me so far. If I recall correctly, you liked using lemon leaf, which is one of the most acidic virginias WLT sells, so you may need a little more than you would with a red or bright leaf blend. Again, this is all ENTIRELY SUBJECTIVE. What tastes good to you, could make another person gag..ha! Sorry, that was a long winded answer, but yea, just start kind of small and get a taste for what DAC has to offer to your blend, and adjust things from there. Good luck and have fun!!