so I went to radio shack and bought the assorted sizes of shrink tubing
The shape of the plug on these friggen things is impossible. The tubing is either too big or too small.....
If its big enough to slip over the curve on the plug of the HF2's, the shrunk diameter is too large for the cable.....
If its small enough to shrink to the diameter of the size of the cable, its too small to slip unshrunk over the curve of the plug.....
What i wound up doing is wrapping the cable with electrical tape right where the tears are, at the joint where it meets the plug, without overlapping on the plug itself, so that the tape would be FAT around the tearing, and used the larger shrink tubing to wrap the plug, and the electrical tape. It's tight, but there's a little play at the very end of the tubing on the earphone side, where the tubing hangs off of the edge of the tape.
But its better than nothing!
Does anyone have any better ideas, or did this a more practical way??