You must use dam SOs in your attacks. 2 acc, 3 dam, 1 rech (or 1 end if you find yourself lacking some end recovery). Damage is what your blaster is and gonna be good at 
You could use more recharge in Build up and Aim.
Nova should be slotted with damage too as your main attacks : 1 acc, 3 dam, 2 rech for this one. No need end reduction here as it drains all of your endurance when used.
Powerpush is awesome for an Energy/ blaster, I'd get this one instead of the snipe.
I'd take also Elec mastery instead of Force for another hold. You can stack it with Shocking Grasp to hold bosses.
Those put together, your damage, mitigation and solo force will be much higher.
Grats for 50, and have fun on your blaster
The problem I'm running into is the slots. I already know one mistake was dropping extra slots into PFF. I'll look into Elec Mastery; I originally went with Force for thematic reasons (Energy styled), but I'll take a good look into it.
Thanks for the advice.
Synergyblast: 50 Energy/Electric Blaster (Virtue)
Arbiter Bailey: 50 Bane (Virtue)
Mr. Bailey: 50 Merc/Dark MM (Virtue)
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You must use dam SOs in your attacks.
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This. You know how much damage you do with Build Up? When you put three SO's of damage in each attack, that's how much damage you do WITHOUT Build Up.
I think you're about to be very pleasantly surprised by what your Blaster can do.
Mini-guides: Force Field Defenders, Blasters, Market Self-Defense, Frankenslotting.
So you think you're a hero, huh.
@Boltcutter in game.
So Dmg 3x, Acc 2x, and End 1x would be better for slotting? I try to focus on keeping End for those long fights when Blues are all gone or have been made into Wakies. xD
Synergyblast: 50 Energy/Electric Blaster (Virtue)
Arbiter Bailey: 50 Bane (Virtue)
Mr. Bailey: 50 Merc/Dark MM (Virtue)
Okay, so I'm finally about to get my first level 50 Hero and I am happy that its a Blaster; its been a really fun ride getting this far. Currently it sits at level 49 and nearing level completion. I've already tweaked the build twice to try different things (i.e. Power Push vs Shocking Grasp), but I'm still not entirely sure I'm getting the most I possibly can. I am horribly Mids ignorant, so please forgive my ungodly method of showing my build. As of now all enhancements are standard SO's and slowly turning into regular IO's. Right now I'm mostly concerned about slot arrangement to maximize future potential for sets, though no guarantee that I'll be doing that again. So, what mistakes have I made in just picking what has how many slots and what goes in those slots?
Power Bolt (6)
Acc 2x
End Redux 2x
Rech 2x
Power Blast (6)
Acc 2x
End Redux 2x
Rech 2x
Energy Torrent (6)
Acc 2x
End Redux 2x
Rech 2x
Power Burst (6)
Acc 2x
End Redux 2x
Rech 2x
Aim (1)
Rech
Explosive Blast (6)
Acc 2x
End Redux 2x
Rech 2x
Sniper Blast (6)
Acc 2x
End Redux 2x
Rech
Range
Nova (6)
Acc 2x
End Redux 2x
Rech 2x
[+]
Electric Fence (1)
Nothing
Charged Brawl (6)
Acc 2x
End Redux 2x
Rech 2x
Havoc Punch (6)
Acc 2x
End Redux 2x
Rech 2x
Build Up (1)
Rech
Thunder Strike (6)
Acc 2x
End Redux 2x
Rech 2x
Power Sink (3)
Rech
End Mod
End Redux
Shocking Grasp (3)
Acc
End Redux
Rech
[+]
Hurdle (1)
Jump
Health (2)
Healing 2x
Stamina (3)
End Mod 3x
Swift (1)
Run Speed
[+]
Hasten (1)
Empty
Super Speed (1)
Empty
[+]
Personal Forcefield (3)
Karma -KB
Def Buff 2x
Temp Invulnerability (6)
End Redux 3x
Res Buff 3x
Force of Nature (1)
Empty
Synergyblast: 50 Energy/Electric Blaster (Virtue)
Arbiter Bailey: 50 Bane (Virtue)
Mr. Bailey: 50 Merc/Dark MM (Virtue)