Look up the flourish Angel ... Maybe someone could lend a hand on the crediting. I'm not sure who came up with it. Might be like Kevin Ho or someone.
In that flourish you can turn your hand upside down to load the card into your thumb, then rotate your hand and perform ambitious explosion. I've got anhidrosis so my hands are very dry. I don't sweat, but with this upside down Angel technique I can do ambitious explosion.
Hope that helps.