Hello, I’m having issues getting Black Knight into free play. I’m not sure if I have another problem going on either. From what I know, I’m supposed to go to adjustment setting 18 and use the start button to set this to zero. Then cycle through a few more adjustments and power cycle. First, sometimes going through the adjustment 18, the numbers skip around? Very strange. Also, if I get to adjustment 19, sometimes it gets stuck on adjustment 19 and won’t go up or down anymore? But if I cycle up or down the various adjustments fast, it flys right by 19 with no problem? Very strange things going on. Last, if I do manage to set adjustment 18 to zero and then power cycle, it doesn’t save that? I changed the batteries too. I’m wondering if there are other things going on? Thank you for any help.