You should avoid pro-customer status if possible. As customer, you go ahead of firm/BD and pro-cust, but that is not the big issue. Customer fees are much lower than pro-cust fees. I can't speak for IB, but many introducing brokers like us have access to smart routes that can avoid most maker-taker fees as the give a first look to a market maker before landing on an option exchange. These routes are very popular. Those same MM won't accept pro-customers on those routes because the cost is too high,
Also, for automated traders that are subject to non-display fees, OPRA has an exception for Priority customers but not for BDs and pro-cust. Once you get hit with non-display fees this will increase your monthly OPRA cost from around $50/month to $2000/month.
https://www.opradata.com/specs/OPRA_FEE_Notice_9-30-2016_1.pdf
You should give me a call tomorrow.
Good luck..Bob