With the POOL rewards on deposits, the AuM has increased rapidly, translating into substantial prize pool already now. I dont consider adding POOL now to the prize pools as sensible. In general the idea isnt bad, but it’s right now not needed. It could be occasionally added after expiry of POOL rewards on deposits.
I opened a thread with another idea to create a jackpot, would be cool to get your input there: PoolTogether Jackpots