I am also a distance runner. I stick with my pacific salt. I wear Clipped to my running shorts at 3 o'clock. I dont like built in underwear and always wear compression shorts so chafing isn't an issue. Defense is my only real concern on a run. Even my long trail runs I carry premade food or wait until returning to camp for food prep.
I'm probably not much help since my routine is so different than yours but I fully recommend the pacific salt if you can make it work.
My Spyders : Endura wave PE, Pacific Salt SE, Tenacious PE, Persistence PE(gifted), byrd Hawkbill SE, Cricket(lost)
Wish list: Yojimbo, Cricket, Delia FFG, Street Bowie, Police 3