It looks like you got a botched up set from Hawk like i did. My HP+ pads i got for the front had 3 pads with the two small bumps on the pad back located near the centre (outside pads) and 1 pad with the small bumps located along the outside (inside pad). i had no choice but to install them that day so I had to grind off the centre bumps on one of the pads to make it fit right on the piston side. I ordered a new set from Moapc and just got as credit for the bad set.
The low pedal your getting and the sensation of the car just not stopping correctly and the rears locking up sounds like you got some major bleeding to do. Buy a nice big bottle of brake fluid and bleed your entire system till nice new clear fluid comes out of the calipers. Remember to always refill the reservoir after you bleed each caliper!!! to avoid the possibly of running low on fluid and sucking more air into the system. Im sure you know but start with the caliper that is farthest away from the MS.
I love the Hawk HP+ pads but they are loud and dusty. I have had mine only installed for about 6-7 months and my new Powerslot rotors look like they have been on the car for over 3 years. The pads chew on the rotors so hard the rotor will have to be turned by mid summer. The pads still look as good as new though.
The low pedal your getting and the sensation of the car just not stopping correctly and the rears locking up sounds like you got some major bleeding to do. Buy a nice big bottle of brake fluid and bleed your entire system till nice new clear fluid comes out of the calipers. Remember to always refill the reservoir after you bleed each caliper!!! to avoid the possibly of running low on fluid and sucking more air into the system. Im sure you know but start with the caliper that is farthest away from the MS.
I love the Hawk HP+ pads but they are loud and dusty. I have had mine only installed for about 6-7 months and my new Powerslot rotors look like they have been on the car for over 3 years. The pads chew on the rotors so hard the rotor will have to be turned by mid summer. The pads still look as good as new though.