[Lilymo]

Hi all am looking for some advice on clipper blades. I have purchased an Andis clipper which came with a 10 blade and combs. I want to do a puppy cut in my girls and was told 3 3/4 blade is best for this. However I have seen a 3/4 blade on line for long coats and wondered what you experienced groomers think would be best. Any advice will be appreciated. Thanks in advance.