Snatch pulls are low on the OL technique scale and pretty solid on the delts and traps. Similar to blut wump's suggestions, you can use quite a bit of weight and the back/traps were made for dynamic pulling. Overhead pressing, even using the snatch grip can be good. Overhead squats tends to really build a base of support on the shoulders.
If one was to go by bodyparts and days - any type of vertical pulling would fall on back.
If one was to go by bodyparts and days - any type of vertical pulling would fall on back.