My knees are good now, thanks for asking. I haven't had a flareup in almost 10 years (touch wood). I wear PF straps for aerobics (stepping and lateral movements) but I'm weaning myself off them when I run. I don't use any straps or tape for cycling and it's fine. I do get a twinge now and then, just a little grindy feeling. Taking shark cartilage or glucosamine/chondroitin mostly prevents that.

The last time I went through PT for PF dysfunction, they had me doing straight leg raises with my leg rotated outward, to develop the vastus medialis. From what I've read, a weak VMO is implicated in a lot of women's kneecap tracking issues. The Chi Running method is definitely developing that muscle, too.

Hope you're starting to see some improvement.