The moment of migration itself is the most valuable time for LPs to provide liquidity. Nothing in the existing structure incentivizes LPs being staked at the moment of migration.
Currently anyone can just get sushis without participating in the migration. Why would you stay staked if you can make 10X rewards before and then pull out your funds and go on your merry way before migration happens?
Proposed Solution: Provide a large, one-time drop of Sushis for all LPs who are staked at the time of migration. This is even more important than providing incentives before the migration.