Not me, but my sister had her DD's lip tie done at around 10-11 mths. I think she needed to get it done twice, because the first time did not 'fix' the problem. She was having what seemed like minimal bfing issues, but they were caused by both tongue and lip tie doing mild damage, resulting in recurrent thrush. The dentist who did it (specialist paedeatric dentist) mentioned that her DD would likely have had speech issues if she hadn't had the lip tie done while she was young.

The procedure didn't cause her pain from what my sister said, although she might have had a little bit of mouth sensitivity for a few days afterwards. The thing she hated the most was having to be held down and still for the procedure itself.

My sister was sent to the dentist by a great ABA-referred GP who specialises in lactation issues in Brisbane, so no help to Melbourne unfortunately.

HTH! I can ask in more detail in case I'm remembering incorrectly.