Phill was definitely one of the first, if not the first to make epoxy soaked, cord wrapped "tactical knives."
Was just looking through my collection, I have one of the first knives he cord wrapped, a beige wrapped Force 1 in 01 steel. I bought it from the original owner complete with receipt, the date is March 18, 1978!
People also know Phill for using A2, but in his early days, he experimented with many different steels, 01, D2, M2, M42 even 440c and 154CM! I have a very old hunter of his in 154CM, the only one Ive seen in all my years of collecting Hartsfields.