OK Chaps and Chapesses (ladies)
I think the answer here is that unless the other band members are extremely good then you're better off switching off the 'Arranger' side of your keyboard...
Now what is interesting is the increasing number of players who have indicated that they use the sequencing and midi facilities extensively when 'playing' live in front of an audience - now accepting the questionably marginal differences between a sequenced 4 beats which constitutes a style file versus pressing the start button then sitting back and letting the sequenced or midi file in the keyboard play the whole 3 - 4 minutes of the song - which feels more to you like a genuine approach, given that you're not doing something else like singing or playing a guitar?