I should check one of 'em out; I think
Bash has messed around with one and she's tolerated very high running loads. Especially if they combat overstriding, which is my best guess. I can mid/forefoot strike when easy running, but I fall back on my feels when tired/pushing.
A cursory search of witbrodt and shamrock has you 12th out of 330 in your age group. Blame one minute on traffic. And congrats!