I would guess that all barefoot and zero drop runners would run on their forefoot. The higher drop shoe that I bought almost pushes the runner into a forefoot style of run. So it could make sense that zero drop people would prefer a shoe that got them there easily. I have hesitated adding to the heel (with an insert) as I assumed the foam composition of the shoe would be adversely affected by shoving stuff in.
As I live in winter wonderland Canada I have not run outside in a long while, snow and ice no longer hold any fascination when running. But we had a weird warm day today and took the super (ish) shoe outside and did notice the stride length showing on the Garmin had increased over anything the treadmill shows. So that might be part of the equation to see if adding or subtracting drop, adds or detracts from stride length. I’m easily amused.
As an aside, trying on shoes to see what’s comfortable has resulted in many comfortable “clogs” To bad most running shops don’t have a treadmill (although I’ll bet there are some)…:0)