Can you self drop several times in one token? I am just thinking. I did not anyway tried it. Anyway, reaching out to help others get free like this is a great work. Let me check if I still have extra merit points for you. Good luck and regards!
I believe it's not possible since self drop is via smart contract and developer usually create many parameters to eliminate any abuse on the giveaway. But you can try if you have spare money to cover gas fee but it's really not worthy since you didn't know if the token will really have a value or not.