you have way too many points in to incubi. Normally I would say 5~6 w/ Archon is enough, so you have 66 extra points right there that you could use. You dont want Incubi to blow out the unit, as they will just get shot to death during the opponents turn. You want them to hit, stick in combat, and then finish off the enemy during his turn. On top of that when you take the blasterborn, that 5th guy isnt needed. 12 points is too expensive for an abrasive wound, and he actually causes more damage to your trueborn when the vehicle explodes (4*5*.667= 1.334 wounds instead of 5*.5*.667= 1.667 wounds)
My suggestion with the points is fill out your wych squads, but there are tons of things you can do (upgrades here and there, maybe a 3 man reaver unit w/ weapon of choice)