Just pulled all 4 of them. Backs are nice and firm, fronts won't build any pressure. Front handle is spring tension only.Apparently you guys do not understand how the stationary brake pad adjuster screw works?
The calipers have a moveable pad and a stationary pad. The screw is used to adjust the stationary pad so its correctly oriented to the brake disc.
Pump the brake lever till pressure it built up. Apply a drop of blue loctite to the screw threads and insert it and turn the adjuster screw all the way in until the stationary pad contacts the brake disc. Then back it out 1/2 turn. They ALL have to be set that way for the brakes to function correctly.