Thank you! Just started the same routine with adjusting slopes and already have way better results with 4x8 4266 cl16! First of all it was crucial to set odt_read_duration and odt_write_duration to 3 with odt_read_offset and odt_write_offset to 1. This change got rid of q-code 55 while training. Now I am going through all the slopes. Initially I set them 7-1 to avoid auto changes during tests. Right now I am focusing on the first pair (data rising; data falling) and it looks like (8;7) gives me the best result of 11'12" (almost 600% of coverage) without an error. Thanks again for sharing this stuff!