I agree alot with Onyx girl here, To get to a 1 is a big feat, from there its fine tuning the dog, and getting them solid on the additional exercises in the next level. a good way to look at it is how well did the dog do getting the 1, were they strong and solid or were they lucky to get the 1? these things determine if you can get to the next level and how much work you have to put into proofing the dog for that next level.
"Zeige mir deinen Hund, und ich werde Ihnen sagen, was fŁr ein Mensch Sie sind.."
Capt. Max Von Stephanitz