@dona46 I used to cut the hole for my stoma at 1.5" in diameter which fit snuggly around my stoma. I had some leakage problems so I increased the size of the hole to 1.75" and stretched the wax ring hole to fit the base plate. For some reason this helped with not having leakage problems any more. It would seem that making the hole bigger would increase leakage problems but it didn't. I don't know if the close fit on the stoma caused increased pressure on the adhesive on the base plate and led to leaks. It could be that when the stoma spasms as it does sometimes that it puts pressure on the adhesive. The looser fit helps that. My leaks are very minimal now. Hope this helps you. Give it a try and see.