Hi Ellis, Thank you for having this wonderful new forum. I am very excited. I am a bit confused with the difference of BA OTB4L and OTB4L and BA S40 and S40 I understand the modes and how to apply the modes, but I am not certain about the BA part I am also confused as to the progression within the progression When we reach a 3 in a row do we bet that it will go to 4 in a row or do we bet that it will stay at 3 in a row. Thank you Alice