I love flex the cups are amazing they have a little pull thing so you don’t splash all over yourself when you are removing. However, they seem to be smaller. I fill it up in about 8 hours. I even went up a size. I have tried the cvs brand and they are a little hard on me. I can never get them to pop just right and the fitness is a little hard. I personally have a high cervix so anything that is king is alright by me. I also bought this pixie cup thing that kinda helps insert the cup. It didn’t work that great. Any tips?