I've been pulling my hair out after I did a birf rebuild and brake upgrade. The brakes would need to be double pumped before they would catch. I searched here and found some great threads but to no avail I couldn't get them to work properly. I bled them, I flushed the system and added new fluid, pressure bled them, new master cylinder, more bleeding, LSPV spacers, and they still weren't right. I finally had enough and took it to my trusted mechanic. Turns out I didn't adjust the bearing pre-load properly and that affected the front rotors and thus the calipers. He went here to Mud, found the specs and set them. No more brake issues! I figured somebody here must have had that happen or could use the info!
Happy wheeling!
Happy wheeling!