This picture seems to show the problem pretty well .
It seems that spoiling the aero shape (which would be a horrible pity !) or alternatively leaving a gap between the forward and aft section....it would allow the pressures to equalise across the body and stop there being any side lift .There would still be the straight side pressure but not aero side lift .That might more than half the side forces .
Any comments on this ? I'm just thinking but if anyone can point out my errors I would be pleased and grateful !