To clarify, I do not have any fail to start issues. The only issue I see is that the stated instruction on how to set the minimum speed (UDC) do not operate as per the manual. Based on my experience attempting to follow the UDC setting instructions, I set the UDC at 60. The value of 60 for UDC (min speed) works fine for me and the value of 97% for HDC (max output power) also works fine for me.
With these settings and no other changes to any other values, I was able to control my pit temp for hours.
One of the reasons I purchased this unit was the ability to have a variable fan speed vs. simply on or off. I think this is an advantage for finer temperature control.