Sigh...
I'm afraid I never got around to trying the USB. Most of my PIC projects are on hold for a while.
Summer is here and I've got WAY too much work to do, plus a bit of machinery I'm trying to develop for the beverage industry (yeah, it's got a PIC), plus acres of weeds to be mowed, a garden to be tended, and a wife to take to doctor(s) appointments for cancer treatment.
It's been a brutally busy spring for me and I haven't had time for any PIC related projects that don't have a specific (make money) goal in mind.

I also broke down and got myself a little Taig desktop milling machine to make small parts to develop my "product" so that's currently eating up what little spare time I have during the week, learning to hack out nice little parts without breaking expensive carbide tool bits.

Spring & summer months are always a low point for electronics projects for me, but when the rainy season gets here again around november my schedule should lighten up and I'll have time to switch back into "learning mode" again with the PIC's.

I wish I had some good code to offer you, but I didn't get that far before spring got here....

Steve