I *finally* got around to picking up a stack of d-line P2s. I picked up a stack of pna Aviars as well. They came in the same nice blend of DX, fairly stiff, medium grip, no wax. Felt really nice in the hand, it had a very slight velvety feel to it. I prefer the feel of the P2 over the Aviar, the slightly blunted nose of the P2 made the disc fit better in my hand somehow, and the disc released cleaner as well.
Inside the circle the P2 handled extremely well. It was more accurate for me than the Aviar with my current putting form. The Aviar had slightly more glide , the P2 were just dead straight with a tiny fade at the end of the flight. I didn't throw them a whole lot in the field, only a handful of throws with each mold. The P2 was unsurprisingly more stable than the Aviar, but it wasn't crazy hss nor did it fade a ton. The Envy was more hss for sure
As for durability, it's clear than d-line is a baseline plastic. Even tho this isn't the soft waxy dx from yesteryear, its still pretty easy to ding up the discs. I only used them for 2 * 20 minutes of putting practice and already I got some semi deep dings and cuts on a couple of the discs