cj, thanks. It is SO gratifying to see how far this anti-PS platform has come under the insight and stewardship of Dr. Philip Thorpe, our intrepid science helmsman (no offence FTM). Many of us vividly remember the naysayers who cast dispersions on his ability and knowledge. Years ago I said his was Nobel quality work, and there are echoes of that here now, and the many spin-offs from that platform continue to grow apace. Great stuff. Thorpe chairing a conference of that quality speaks volumes.