Navigate to the old Aura pool and unstake your Balancer pool tokens (BPT).
Navigate to the new Balancer pool and follow the deposit flow.
Do not click ‘stake this to earn extra’ as you need to stake your BPT in Aura.
Note that staking your BPT tokens is optional and not necessary to earn pearls.
Once you have deposited into Balancer, you can stake your Balancer Pool Tokens (BPT) in the new Aura pool.
Simply navigate to the new Aura pool, and click Stake.