I remember the days when good riders had a technique to blip the throttle on downshifts, rather than relying on ramps and balls - but then again I'm an old fart.
Anyhow, stamping down on the little lever sticking out of the left hand casing seems to work for me - but there again I have no ramps and definitely no balls....
Paul
15th year in DD #68 and getting slower by the year
1199, SS800 & 620SSie DD racer