What adjustments on the fly? I had a V for many years and couldn't adjust anything on the fly. In fact, beautifully engineered for accurate set-up it may be, it was a bit of a laborious task for VTA, I found. Adjustment of overhang by sled may be 'safer' than by headshell slots, but is no more effective or easier, i.m.o.
You can adjust anti-skate on the fly. The Series V is a joy to handle and set-up. Very easy to follow the instructions.