Why would an experienced trader that is making money have any interest in this deal? $10,000 worth of capital for a 50/50 split? If he/she doesn't have $10,000 of their own (where they would get 100%) I don't think you would want them. As @MarkBrown mentioned, you would get basically broke rookies.
I think there also might be an issue with IB and you having many subaccounts with different people trading under them, especially if coded as retail customers. This is not something that brokers are comfortable with.
I think there also might be an issue with IB and you having many subaccounts with different people trading under them, especially if coded as retail customers. This is not something that brokers are comfortable with.