I use exactly that with -1 Fractal, +1 Aether Tower and replaced dragons with Archangels. However, I might change it to -1 Aether Tower, +1 Nova/Quantum Tower to help get the SoG's out. Gonna do some testing.
3 Electrocutors help sometimes and work against you a lot of other times. The main reason for this is that the primary weakness of this deck is bad draws. The strength of a Hope deck as I see it is that it's fast and simple. That's why I keep it at 2 Electrocutors and might do the aforementioned change.
In any case, most variations work. The final tweaking is only due to personal preference, so just go with what works best for you.