Your equipment profile should be customized to your system and process. The published recipes are typically geared to give results close to the anticipated specs for the majority of brewers.
The way I usually approach a published recipe is to enter it as written into my standard template containing my equipment profile. This also allows me to enter in the %AA for my hops and adjust them to the expected IBU contribution the recipe calls for. I will then use the sliders under the ingredient box to adjust the OG, color, and IBU to match the target for the recipe.
I will then select a mash profile which matches the desired mash temperature as printed. I may make an adjustment in the mash temperature, as my system generally will produce a slightly more fermentable wort and end up a little lower for the final gravity. Pretty much, I will leave it as published though.
Doing this ensures that I have the best possible chances of making a recipe which is close enough to the published recipe in measurable stats. Keep in mind that you and I can both brew the same recipe and end up with different beers reflective of our individual practices and processes.
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