i have a precut 7/8" appliance. Its very snug fit. if i measure out the next size up, which is a 1 inch there is a little play and i can see some skin .i put a barrier ring between skin and flange as well for extra safety. is it ok for the appliance to fit snuggly around my ileostomy or should there be some space? i just dont want a leak. sorry if i'm not explaining this correctly