This could be a good way to rhythmically interact with other players thinking of 8 bar phrases rather than reacting by copying what other players do.
- Think in 8 bar sections. Start your idea on any beat except beat one, make sure to aim for a particular beat, e.g first phrase start beat 2, second phrase beat 3 etc.
- At the start of the next 8 bars finish the final phrase landing strongly on beat one.
I think it just helps to get you out of starting your phrases in the same place all the time. By thinking of starting in different places (by beat numbers) then it might break patterns of where you normally play.