Switch up my workout routine?

[austinfrench5]

For about 3 months now my workout routine has been

Back/Bis
Chest/tris
shoulders/ traps
legs/abs

I often vary the exercises i do each week but am wondering if i should switch up the muscle groups i work out together. such as doing chest and shoulders rather than chest and tris. will this make any difference?

 

[Sweekaters]

It makes no difference at all as long as you are utilizing progressive overload. 'Muscle confusion' is a myth, as is the pseudoscience that you need to change your routine every x weeks for it to keep being effective.