What size tip?

[OFDLUIT33]

My department recently agreed to allow a smoothbore nozzle on one of our 1 3/4" preconnects. What I want to know is what is the best size tip to put on? Could you all help us out!!

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The views here are mine and do not reflect that of my department or any of it's members.

[DD]

We use the common stack of a 1/2" tip on top of a 15/16". The 1/2" is good for overhaul & trash fires. The 15/16" at 50 NP flows 185 gpm and is used as the attack tip.