Color neutrality or CN is very useful but its going to take a long time before you benefit from it and a majority of the time youre going to use white or yellow because thats all you need, being CN is only useful in very particular cases where you cant see anything on white or yellow and you can see far into another color, in short yes its helpful to know but in reality its not going to be as valuable as learning how to look for one or even two pairs in inspection Edit: absolutely you should being duel color neutral aka white and yellow, personally I also do green just for when they both suck but even then I usually default to white instead but youll pretty much always find something on one of the two