One of the approaches for gaining muscle mass is to do exercises to failure. Obviously some of the exercises can be quite dangerous if doing them without a spotter, like bench-presses. Others can be just "messy" like squats or pull-overs where you'd have to drop the barbell on the floor behind you without really knowing where the barbell might land.
I'm exactly in this situation, i working on building mass and i don't have a spotter. So i'm doing supersets instead.
So, my question is:
Is it as effective replacing one exercise done to failure with a superset consisting of the first exercise done till 1-3 reps to failure and immediately followed by another exercise targeting the same muscle?
- Bench press to failure --> Bench press (stop 1-3 reps before failure) + Dumbbells fly
- Squats to failure --> Squats + Dumbbells lunges
- Barbell shoulder press to failure --> Barbell shoulder press + Shoulder press in a machine
EDIT (for clarification): Since i've just started on my mass building, i don't have plateau issue (yet).