100% Whirlpool

[bleme]

So I want to do a Baltic Porter with ALL the hops in a whirlpool:
1oz Cascade
1oz Centennial
3oz Belma

This is my first time using BeerSmith 2.2, which calculates whirlpool at 194F. It tells me that this beer will be 61.5 IBU's if I whirlpool for 20 minutes. Does that seem like a valid starting point?

 

[bleme]

Looks like the only way to find out is to try it myself. Here goes nothing!

I am also thinking that since this is just 2-row and wheats in the grain bill, I probably don't even need a 60 minute boil.....