I recently replaced my front master cylinder with a Hughes Handbuild one and threw on a SS braided brake line for good measure. Everything works great during the day, but early in the morning when it's below 55 degrees F outside I have to pull the brake almost to the handgrip to get any stopping power. Later in the day after everything has warmed up the brake works perfectly. I never noticed this problem with the oem master cylinder and brake line. Any ideas why this is happening and if there's anything I can do to prevent it?