Success!! Little H took some refrigerated ebm from dp using a slow flow Medela bottle. DP had to be standing up and moving around though? Odd. Thanks for all the advice everyone. I'll get him used to taking it from dp sometimes and then try my mum since she's the one I'd leave him with.

HotI I'm only going to be doing a few days right near home.. Maybe I can talk to dp about going back at 8/9 months rather than 6 when he's eating is a bit more established... Thanks it's something to think about.