I wish you would show HOW you are doing it. How are you using your fingers/hands to get them to not just go into the deck behind and not just in front. That is my challenge.
Although this video is in Spanish you can have a good comprehension of how I shuffle here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2fWlzKy5Acw.htmlsi=oGOUX2hZwYS0X-Wc&t=85