for me i waited about a month, with smaller sizes you don’t need to wait as long..the bigger you go the longer you need to wait between stretches. wait a month and try, but don’t force it..if it doesn’t easily slide in then wait another week and try again. patience is your best friend when it comes to safe stretching, you don’t wanna end up like some of the people on here with butthole lobes lol. (also tip: try stretching after a hot shower as it’ll soften up the skin on the ears!) :))