Tom, Tom, Tom.......
You are so easily rattled. I never once stated that my upbringing was the right way. In fact, I'm more of a bass player than a piano player, but I learned to play the lines with my left hand out of neccesity years ago. My point is simple -
ALL arranger players will sound the SAME if they all use the same arrangements! Youneed to "spice up" the stock arrangement with lots of your own heart. I think if I am in an intimate setting - I prefer the trio sound to the best arranger style. If the dance floor is more of a priority, then a sequence or an arrangement is more appropriate. In your old days on organ, I'm sure you had no trouble making a "psuedo arrangement" with just two hands and one foot. I just took that step to the next level with auto keyboards, because of the built-in drums. I still believe that MOST of the sound is in the bass, drums & vocals. Those will always be the priorities for my shows.
As for the Yamaha BB styles -
I can pack a dance floor with just the stock styles even WITHOUT the arranger - the drums are right on the money - it's up to you to add the rest of the ingredients to make the arrangement complete. Play the right style with the RIGHT hand and the bass & drums will carry the song.