I started out with Bummis too then branched out. I really like GMD Indian prefolds they are great. Those are the only prefolds that I have used other than what came with the Bummis kit. I am getting ready to try some of GMD flats because DD grew out of the brown edge prefolds and I don't want to spend the money on a ton of XL toddler green edge ones. I definitely recommend the GMD though, they have good absorbency and the prefolds you have now will make excellent doublers when/if needed!