Awsome combo! Even know they are both mainly anabolics, they stack very well together. You get the best of both world.
Deca: anabolic, joint lubrication, greatly increases protien synthesis, size, etc
EQ: Anabolic, increase appetite( which goes great with deca ), increase vasularity, low conversion to estrogen
As you can see the main thing they have in common is they are mainly anabolic. Which is great! The more anabolic the cycle is the more true muscle you gain!
I highly recomend the 2 together.
Add some test and maybe some winny and watch out!