Why interrupt the memory items to accelerate? Pitch down, the PM need not be involved? OK, FDs give "false" info, but that;s also the case during an emergency turn.
As long as you can communicate well and concisely enough to bring the PM with you and not just start flying outside the box and leave the PM unsure if you are in control, loosing SA or have a cunning plan. Two things I would most definitely want to avoid is loss of control or a confused partner.
Well, if it's SOP to accelerate @ MFRA then NOT doing so would trigger a response from the PM, if he's ot too busy with the memory items to notice. So only if NOT following SOPs you need to interrupt the memory items.