Everybody bring it down a notch. Blue forum, remember?
The anchor setup in Jmichaels image is more than enough to keep you safe on most bolted sport climbs. Your own setup was a bit too redundant, unnecessarily so, and could lead to a mistake which would lead to an accident.
Most people use 2 opposed non-locking biners for the power point. If you feel better using lockers all around, feel free.
edit: upon further review, it seems I'm taking some things for granted. What knots are you using on the cordelettes?