OMG! That'll never work! NEVER!
Looks fine to me. The only thing
I, and I put emphasis on "I," might do differently with the recipe is to add a KO hop addition (probably .25 oz Hallertau and .25 oz Tett) to add a little more aroma but, with the profile I think you're striving for, you may not want that.
I don't think a protein rest is mandatory, though. I'd say a simple single infusion at 153 - 154, a simple mash-out, then sparge and, I'd say, you will get you the same results. I MIGHT recommend, only if you want to try something new...
1. Put your grains in ~1.25qt water/lb at ~100
2. Gradually raise the temp to ~153-154 over 30 minutes
3. Mash for 45 - 60 minutes (until conversion)
4. Add ~.25qt/lb water @ 175 and stir
5. Rest 10 mins and drain
6. Batch sparge (either single or double) with the remainder of your water and stir
7. Rest 10 mins and drain (either once or twice)
8. Boil
9. ????
10. Profit
That may or may not be easier than what you've got planned since I don't know your equipment...
What yeast are you going with? That'll have more to do with the final outcome than a 20 min rest, imo.
My 2 cents.
Sweet! Ok here what I'm going to try.
8 lb Pilsner Malt
2.0 lb Belgian Biscuit
1.0 lb German Wheat Malt Light
1.0 oz Hallertau Tradition 60.0 min
1.0 oz Hallertau Hersbruck 30.0 min
.5 oz Tettnanger 10.0 min
The recipe I'm kinda sorta following calls for a protein rest at 122 for 20 min, mash at 153 for 60 then a mash-out.
Using BeerTools, on account of the mash-out the protein rest has to be .7qt/lb in order for the main mash to be a reasonable ratio. Is this ok? The grains are ground up already so I can't change much (its just an experiment anyway) but I'll of course take any advice y'all have.