I did my chest workout which is:
Flat BB bench press (4) 10,9,8,7
Icline BB bench press (3) 8,6,6
Dips 12,11,10
And a week later when I did my chest workout again I was stronger in the dips but weaker at the flat and incline bench press I did less reps I don't understand how I was weaker. The only thing I can think of is that my body responds better to reps of 9 -12. But surely I should have gone up atleast 1 rep.