Using a diffrend hop for bitterness will change taste?

[Mastoras007]

Hello everyone
I wans wondering about bitternes hops, i'm trying to make a recipe as cheap and simple is posibe thats my recipe https://www.brewersfriend.com/homebrew/recipe/view/1505158/blonde-ale-
s I read today in the book how to brew, for reasons of economy I can use high AA hops at the beginning of the boil to reach the same bitterness in relation to another lower AA hop.
In this particular case I am thinking of replacing the Cascade 60min in half the quantity with a magnum
i will have the same bitternes acording to the calgullator, but my question is can this cause a big diffrend in taste of this spesific beer?
So what if i use magnum or any other hop for 60+ minutes of boil will lbe any big diffrend to the beer?
tia

 

[Minbari]

It will have less effect than later additions, since most of the volatile oils, which contain alot of the flavor, are boiled off.
High AA hops are usually preferred, since you need less of them for the same IBU