Without the fifth line, you're not going to see as much improvment.
Originally Posted by RamAirZ
The 5th line is for the line running to the rear axle right? You should still see improvement as most of your stopping is done with the front brakes so if those are upgraded you SHOULD feel a difference if everything else is working correctly.
On most vehicles I'd say you're right, but I've never seen or heard of a VX wearing out it's front pads before the rears.
I have replaced my rears twice before the fronts needed it.
Unless they're using a softer compound for the rear pads...