Refresh Planning is made up of the following elements:
Update (looking back to record what was done)
Pull-in (looking forward to breakdown long duration tasks and/or change the schedule to cause schedule acceleration)
Most teams only focus on Update, which is good, but it alone does not cause the schedule to accelerate. You really need to do schedule pull-in after each update.
Reserve 5-10 minutes at the end of the refresh session to seriously look for pull-in opportunities and then put them directly into the schedule so the team can see the result of the action.
You can aid this process by asking:
What is on the critical path over the next 3 weeks?
Looking at the critical path chain of activities, what can we do to accelerate this work?
Specifically, can X be done at the same time as Y? Can we do Z faster in any way? Can Q be broken down into more detail and made to go faster?
Finally, if all the above fails to generate a pull-in, ask if the work over the next three weeks can be done differently in order to make it go faster?
If you get a pull-in, ask what the risks are with the new flow and what you can do to help mitigate them?