The Hunter machines are only as good as the people using them are as evidenced by the difference in the balance this time as opposed to your first balance. Both were on Hunters and the results were different. I also had my old Toyo's Hunter balanced by one shop and my new Pirelli's by another. The Toyo shop was much more expensive and known for working on high end cars. The Pirelli shop was average. The balance was much better on my Toyo's at the better shop using the same exact machine.

Specifically ask them to check your rims. Sometimes they just balance the best they can with what you have and never mention anything to you until you ask.

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Profeshenal spellar