there is quite a broad definition to 'if feeding is fine' though.
with dd2, she fed (bf) ok, but struggled to put on weight. I mean really struggled - she was over 8lb at birth, but was still only 14lb at about 16 months! She was investigated for years for FTT, and part of the problem may have been due to tongue tie.
ds fed ok, ostensibly, in that he was putting on weight ok. again, not exactly rocketing off the charts, but just about holding his centile line.
but at 4 months old he was feeding every 45 minutes day and night. that bit was not ok for my sanity, or for the good of my family overall.
putting it off until later can end up meaning there is reluctance to get it done. I know I just squeaked in with ds at over 5 months old. A few more weeks and they would have left it until he was nearer 1, and done it under general, apparently. Not really something I would have liked to be done.
when the hv referred me on, btw, she did it in a (nice, not patronising) 'well, we'll see what they say, but as he is putting on weight you may get sent away again' way (ds was happy, smiley, and a big baby). She referred on because the tongue tie people are the experts. she thought it would be a minor tie, as we were no longer having difficulties feeding (aside from the small, frequent feeds, no pain I mean), and it ws not clearly visible.
ds' report sheet from the clinic states an 80% tongue tie. the people at the clinic were absolutely adamant it should be done, despite umming and ahhing when we first walked in due to ds' age.
ds' feeding changed almost instantly, and although it took a while to stabilise properly, he was more settled straight away (and he really was the windiest baby ever beforehand).
really, I suppose what I am saying is that he went from being the most ridiculously cheerful baby before having his TT snipped, to being the most ridiculously cheerful baby after having it snipped. with added sleep (which was a bonus for me). His TT wasn't really affecting him so much, but it was having a major impact on the rest of us (and who knows what would have happened if we had left it. obviously, you can only make one choice).
I was massively anti having it snipped before it was done. I hated the thought of no anaethestic at all, and thought all the 'it's so quick they barely notice' and 'some babies sleep right through it' was just propaganda bullshit, quite frankly. ds is not my pfb, and I have had to hold down my other children for medical procedures, but it still didn't sit right that I would have this done to him without any pain relief at all.
I went along to the clinic to try to listen without prejudice. And I ended up having it done for him, on the advice of the experts (who were themselves a little reluctant due to age).
And you know what? He really did barely notice. He didn't like being wrapped up and handed over to someone else. He didn't like someone else's fingers in his mouth. But the actual snip? hardly flinched. and was almost instantly calmed because 20 seconds later he was handed back to me and unwrapped, thus immediately solving his biggest problems, and we sat down to feed, which sorted out the third issue. it really was worse for me than for him.
sorry about the huge semi-rant. it turned out way longer than I expected!