Has adding a power pump in the evening ever increased supply?

I know usually if you are going to add in a power pump it’s in the morning since that’s when supply is higher. But lately we’ve been noticing that LO isn’t getting enough in the evening as he’ll only stay the boob for short period of time and is rather cranky his last wake window. We mentioned the crankiness to our ped at his 6 month and she said he was probably hungry and maybe to add is solids to dinner time too which we will probably try. But currently he’s still just exploring with food and not taking in a lot so I’m curious if a power pump in the evening would help or if I should still just do it in the morning and hope it trickles down.