Hack Squat + Thigh Auxiliary and Core

Morning
A.) 3x15 Hack squat
B.) 3x12 One legged leg press
C.) 3x10 Leg extension 0303
D.) 3x10 Cable situp

Results
A.) 300lbs
B.) 185lbs
C.) 50lbs
D.) Comp

Notes:
Jeez. I know this doesn't look like its that much, but holy cow had this slowing down and going to failure stuff been putting the squeeze on my CNS. This is the first time my quads have been sore in about two week.