For a 4 oz tail: Broil high for 8-9 minutes. Check it. Done? Great. If not, give it 2 more minutes. For a 6 oz tail: 10-12 minutes. For an 8 oz tail: 12-14 minutes.
Remember: Remove them when the internal temperature hits 140°F (if you’re nerdy like that). But honestly, the visual test is king. When they look like they’re blushing from all the compliments, they’re ready.