I sold a third of my Usg pos at 6.99 $. Almost bought back that at 4.18, that is until I noticed the price of Cck...who fell much more than Usg in the last weeks. I had some hopes to buy Usg at below 4 $, I'll wait and see for one day or more. I'll take a look at Owc, Gra and Ack. For now, I'm much too ignorant about them.