I like Surge before and sometimes after practice. (10 minutes before)
Sometimes during as well. I vary it depending on how I feel like taking it.
Just be prepared to play along with all the comedians who give you trouble about taking a water bottle out with you.
At least you don't need to wait for a water hose. (whos laughing now)
Let them try it when they come around to asking you. It will take awhile but eventually they will get comfortable.
I'm no expert... Ask Barr, Lowery, or JB though and see what they say.
Just what I do.