Thoughts on supersets for the same body part?

I’m a big fan of supersetting opposing muscle groups like Nigel’s and triceps/ chest back but have been experimenting with supersets for the same muscle group. For example decline dumbbell press followed by decline flys. Today supersettted pull down movements with row movements. You obviously can’t use nearly the same weight but the pump is incredible and I’ve had a lot of muscle soreness which I normally don’t get except for legs. Saves lots of time and has an added cardio aspect. Just curious how effective it is for growth.