For those who perform silent treatment, do you have a problem with gagging?

I have a problem of gagging with the 'chosen' card in my mouth the entire time.

Also, while practising, I notice a really wierd taste after sometime, like the chemical from the card is coming out. With SIA cards, it's worse, the paing flakes. Slipper deck cards have no taste at first but after a while, a really wierd taste starts to form.

Pls advice. If it requires revealing the trick, pls pm me instead.

Just because the originator of the trick performs it that way doesn't mean you have to! Wrap the card with plastic wrap or put it in a small plastic bag. It doesn't diminish the effect any to first unwrap it after removing it from your mouth.