Wider = less rippling?

Is it true that if I have very little own tissue/fat in my breast a wider implant can reduce the risk of rippling? My width is 11.5cm and my surgeron (who's had other not satisfied patients due to too narrow implants) suggested 9.9 or 10cm width. I think it looked waaay to narrow when I tried them on. Goverment paid surgery I can't swich surgeron and am worried. I wanted 11.1 or 11.3cm he said they would be too wide? I don't want them to be wide apart