I use C3 as well. The lady that taught me to make candles said she always poked her holes after the candles set up, so that's the way I've always done them. No I don't sell my candles to the public. My family and friends pay for the supplies I used to make them, or I give them as gifts. I honestly haven't had any problem with poking after set except that you can sometimes see where one or more holes were (like I stated before, they are full of wax.) I'll try disturbing the candle as the wax is setting up and see if I notice a difference. Other than burning it, if you are not making the holes after it sets, how do you know if you got them all? I can easily feel when I poke the holes where a pocket is if there is one.