I've done tren with Stanozolol and Enanthate once. I gained like 15 pounds and retained almost all of it. No bloat and the strength gains were mind blowing.
I would think that mixing Deca with Test, Fina, and Stanozolol is not the best idea. That's like trying to bulk and cut at the same time.
If anything, I would do test/deca and then go into a fina/stan combo after while maybe adding a little test if needed.
I have a problem with trying to bulk and cut at the same time