My neighbor is selling his two Jackson Stars RR-J1K/RR-J2K. He says that i have to buy both for him sell them. The only problem is that the Fact they both have kahler's instead of FR's. Because of that I have couple questions on it's difference between It and FR's bridges.

1.What's the difference in it's tuning stability compared to the OFR?
2.How do change strings on a Kahler?
3.How's does palm muting effect tuning?
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