Agreed on the splits. I only have two gate set ups so, to date, and regarding the set up I use for any 40yd sprints, I manually trigger the start and have one gate either at the 10yd or the 20yd and the other at the 40yd. Thus, I’m unable to collect 10, 20 and 40yd splits in single runs with my current set up.
Regarding running starts, I have recently determined that, as far as training for the 40yd goes, the majority of sprints initiated from a 3pt start can be limited to 10-30yd efforts while the majority of other runs in the 20-60yd range may more effectively be initiated via flying starts in which my guys take approximately a 20yd build up/approach to the first gate. Thus these flying sprints are FAT.