Res signet could be replaced by another usefull skill to!An enchantment , etc.Naor Vyr, congrats on your RA success, i have some alterations though.
honestly, i rather have kinetic armor than lava font. People could just avoid the AOE. Shock is nice, but i like frozen burst + lightning touch(because a snare is greatly beneficial and hexes are harder to remove than conditions.)
glyph of ele power isn't too bad too, but consider slippery ground if you're going to inflict blind.
consider spamming flame burst too. with that, kinetic armor can be kept up. 100 + fire damage every 5 seconds plus constant slashing can really hurt sometimes. With that additional energy regen, you can seriously pack a punch.
to sum it up, my build would go
Aura of Restoration(or slippery ground)
First, enter battle with enchants, use frozen burst followed by flame
burst, slash during the cooldown.
Second cycle would include flame burst, slash and frozen burst again. This way the snare can be kept constant.
Melee can be quite a trouble especially the magehunters but blind(from touch) should be able to stop them in RA situations, just snare them if you took shock. A lot of RAers like to cluster f*** so its a bonus if you hit more than one.
Many monks won't remove blind from themselves, if you decide to use slippery ground, it will be useful, especially for surprise. I don't suggest a spell blade chase after a monk, but rather other casters. you could assist from far too though with slippery ground, an observant eye can spot blind on other players easily. thus it is viable to drop AoRestoration for slippery ground if you chose lightning touch. I stil prefer shock tho.
Enchant removals will really get in the way. Always cover MOM with at least 2 other enchants. This way it stays safe. with 20 second cooldown, you won't need to worry. IF MOM still manages to sway. then you're screwed.