Look at the Dam And Sire of the pup's,
If both are small dog's There is a Very good chance you will get a small springer.
Also why not just get a cocker, then you are definatley going to get a small dog?
cheer's
That last sentence isn't entirely true, at the start of the 19th century small springers were called cockers and large cockers were called springers.
One of my cockers is as big as a springer and he is only a year old so still time for more growing yet
You know what i mean,
You are much more likley to get a small dog if you go for a cocker