I posted on here for advice a while ago and thought I would just post an update in case anyone else is in the same position as me. I have never really got on with expressing but wanted to keeping bf-ing on my non work days.
I am now working 2 days per week and still bf-ing DD (6 1/2 months). On my work days she has EBM and formula. (I can't supply enough EBM for her). I don't express at work. I tried manually expressing to kep me comfortable but it made things worse. Leaving them alone seems better. DD has really taken to food which helps I think.
When I get home DD has a big feed and I pump off the remainder.
She feeds a bit more in the evenings than she used to but otherwise thing are as normal.
We are only a couple of weeks in but hopefully my experience will help someone else.