Yes. You can start now. Also I saw airdrop will be fully unlocked(100%). Also airdrop is around 9% from the tokenomics.
Total Supply = 10B STRK
Assume Airdrop allocation = 10B* 9% = 900M
We will compare this with different number of users.
Ultra Worst case = 900M/3M = 300 STRK
Worst case = 900M/1M = 900 STRK
Middle case = 900M/800K = 1125 STRK
Good case = 900M/500K = 1800 STRK
Best case = 900M/250K = 3600 STRK
Excellent case = 900M/ 100K = 9000 STRK
This is rough estimate. When you compare with other mainnet airdrops, normally they are not giving to all the users. They are targeting 250K-500K users.