PRB's recent rounding bottom chart formation looks quite similiar to what Mr. Jim Sinclair describes as the most reliable formation to buy into. In the past days it appears the handle of the tea cup is being put in place to complete the formation.
You may want to search chart "tea cup formations" to double check what I suspect is taking place on Probe's chart. Or possibly, you can search"tea cup formations" at the jsmineset.com website and receive a complete elaboration on the subject with past examples. I remember Mr. Sinclair did one on gold when it was much lower.