I recall that when I tried declines decades ago, I could handle much more weight with ease.  I did not like them and so I quit doing them.  Perhaps I was wrong?  
Today:
3 sets of 10 each on Smith BB Rows and Lat Pulldowns.
5 sets of 10 each on DB Flyes.
5 Sets of 10 each on DB Laterals.
5 Sets of 10 each on BB Curls.
5 Sets of 10 each on Tricep Pushdowns.
5 Sets of 10 each on Standing DB Wrist Curls.
I will train again on Friday or Saturday as I fell kinda depleted right now.  
Listening to '50s Doo Wop songs right now while reading the forum!