Stm adjustment

I need to raise the rpm on my 1k. It is running at 7500. I want to raise it back to 8400. I know I have to take weight off. My arms weigh 49 grams.

The arms are set up as follows. First 3 washers. 3 grams left side. 2 washers. 2 gram right. Middle 3 washers right side 3 gram. Total weight per arm is 49 gram.

Closest to pin is suppose to be more bite. How do I need to adjust.

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