I'm curious why you have a protein shake pre workout, and not post? Do you have it "carbed up" ???
I would advise drinking your protein shake 45-1 hour pre, and WF 15-25mins pre. The protein shake will take a little longer to digest, and WF usually kicks in pretty quick for me, especially when I start lifting and get my blood flowing. Basically nothing is set in stone, so play with the timing and see how it works for you. But I would stick to the protein shake spaced out at least 20 mins before white flood.
Looking forward to hearing your feedback on the product, bro ! You can't go wrong !