That's good to hear.
I just installed my new Muzzy 100g 3-blades this week.
This will be my first season hunting with any of their products.
I've heard good things, love their fishing points, and wanted to give the BH's a try.
Only had trouble spin testing one out of the 6 I bought, and it turned out to be a bad insert, not the head. They tuned up well with no adjustments being needed after I got the bare shafts flying right.
Glad to hear Muzzy's service is a as good as their products seem too be.
Also saw this recently...