DS2 is 14 weeks old. He was born on 91st centile but is now below 25th with sporadic weight gain after an inital loss - some good weeks (8 oz) and some dreadful weeks (2 oz). (I posted about this at 3 weeks and we had a really good run after I relaxed about things but it appears that the good run was a blip rather than the start of good things). He hasn't been weighed for a month but will be weighed this week. Based on my scales, he has only put on 4 oz a week for the last 4 weeks and is therefore dropping down the chart further. I've had lots of RL help (v expensively with a lactation consultant and seen a cranial osteopath) as well as BF counsellors. He has a bubble palate and small mouth gape. His latch is (from what they have said) pretty good all things considered. And my supply (domperidone and fenugreek notwithstanding) is not fantastic - I think with a different baby it would be fine but the combination of him and me isn't ideal. We feed very often but it is slow and sometimes he isn't very effective - also doing switch nursing and compressions. I would keep going like this if I felt he were happy but he has been increasingly unsettled (with half hour very happy patches) and I don't think I can continue to worry that he is unhappy/hungry. Yesterday he kept crying and refusing the breast for about 2 hours in the evening and during the night he was getting very frustrated as he wasn't getting anything (I can hear him swallowing when there was milk and there weren't any).
So in the interests of my good mental health, my relationship with DS1 and DH, I think I need to supplement him a bit but want (a) to keep BF ideally so that I drop formula after he starts solids and (b) to do it in the most time efficient way. So from others experience shoudl I (a) replace another feed with formula (e.g. 9:30 am) or (b) do top ups of an ounce or so every time. Would love to hear success stories of mixed feeding and how you did it.
Thanks very much