Friday, May 3. - the last 2 SC's at Harris Ranch that you must back into went down this afternoon due excessive heat. It is in the mid-90's but that is a normal day for these parts. There is no signage. Appear to start working then drop down 3 mph, then 0. Called it in and was told that Harris Ranch is to far away to get someone there today. Not what I wanted to hear. My recent 2 day 1,000 mile trip has been instructive in how inconsistent they operate. Except Tejon which screemed at 240 mph! More later.