Dhs pf-4 new, a very good rubber. Very good spin and control, a slow rubber. Medium tacky topsheet and hard sponge.
I've used this rubber for 1 year and still the same now, no downgrade in performance. I used it on both FH and BH on a 5 ply cornilleau blade, well it was very heavy. But later while playing i get used to it. A very good rubber for looping, blocking, serving, loop drives and topspin.
Best rubber to start with, to develop strokes and controlling the game and then later on can upgrade. But a very good overall rubber.