EelZone's energy acceleration is the same as that of TyRam. Except that it doesn't deal damage and you only have the choice of a Benched one.
If you take a look at the TyRam list, in order for it to set-up faster, you will see quite often that it runs Engineer's Adjustment which can be super helpful instead of just using Sage's Training or Junk Arm to put the energies in the discard.
Looking at your list, this deck seems to be lacking in it's recovery options since there is only 1 Super Rod. Have you considered dropping your Sages Training or Lightning Energy a bit? I would recommend that you take out at least 1-2 Lightning Energy and replace them with either Super Rod or Rescue energy.
Also, the Sage's draw is a little slow in my opinion. You may probably want to cut that down to 2 and replace them with Juniper. Juniper gets the job done much faster by letting you discard your energies and backing it up with raw draw power.
You run 3 Stage 2s, so that means your set-up is going to be a bit slow, right? You may want to add in a few Twins just to be safe and get the cards you need for the next turn after the KO. Wanna also be on the safe side? Add in 1 more Tynamo just in case you got 1 KOed. Don't wanna waste valuable recovery resources on 1 basic.
Zekrom EX is a must in Eelzone decks and since you already have one, that's perfectly good. But what about Zapdos? Just gonna ask you, in your testing have you actually found him to be useful at all? Because in my opinion, Zapdos will probably be best taken out if he is not and replace it something useful that can boost your deck's consistency and speed because your deck focuses heavily on Magnezone and having to charge up all those energy costs seems to strain the resources a little.
Other than that, the rest of the list looks solid, though you may probably want to test it a little more and take out the stuff you don't need and replace them with cards that boost the speed and consistency of this deck and remember to keep it simple.
Hope this helped and happy deckbuilding!! :D