Chest and back not getting sore

[Nettix]

Whenever i workout chest or back I feel the pump in the gym, but even 2-3 days after i still don't feel any muscle fatigue as i do with my other muscle groups. They also are (in my opinion) the two muscle groups lacking pretty hard. I am not sure, but i'm almost certain i am doing something wrong.

I recently started Kris Gethin's 12-week workout and here is a recent back workout:
Reverse Grip Pulldown:
1 warm up set of 8-10 reps
3 sets of 8-10 reps

Bent Over Barbell Rows:
1 warm up set of 8-10 reps
3 sets of 8-10 reps

Hyperextension:
1 warm up set of 10-12 reps
2 sets of 10-12 reps

Straight Arm Pulldown:
7 sets of 12-15 reps

Chest workout:
Flat Dumbbell Press:
3 warm-up sets of 6-10 reps
2 sets to failure in 6-10 reps

Incline Flyes:
2 sets to failure in 8-10 reps

Straight Arm Pullover:
2 sets to failure in 10-12 reps

I followed this to the letter, but only felt slight soreness in my chest and almost no soreness in my back. Does this mean i am not lifting properly, or is it okay, i'm not sure...

[benchbrah]

inb4
sore is not an indicator of growth
and soreness=/=growth


form good?

[Nettix]

I always try to be strict on form, but i am a newbie, so i may not be doing exact form because of that. I usually watch videos on the exercise and pick a weight that i can rep anywhere from 8-15 and fail. So definitely not trying to lift with my ego. I just feel if i get my chest and back bigger i wont look soooo small, but without the soreness i sorta feel defeated. I am definitely pushing it in the gym though and feel an intense burn/pump.