I can't fault most of your concerns, but according to the Jan. 15 update Tara Minerals is producing at 240 Tons per Day.
"Tara Minerals is currently producing silver, zinc, and lead concentrate from its 100% owned Don Roman project. Past and current results indicate average grades of 309 grams per tonne silver, 9% zinc, and 3% lead. The mill is operating at 240 tonnes per day and this is expected to increase to 480 tonnes per day by Q2 2010. Concentrate revenue per tonne, after operating costs, is estimated at $200+ per tonne. Tara has secured a long-term sales agreement with Glencore International for the purchase of its lead/silver and zinc concentrate."
Yea, it took a while to get there, but the mine is operating at a pretty good rate now. I think a poster mentioned that some of the concentrates got wet when a period of unexpected rain came. This will most likely cause some delay in the initial deliveries I would assume, but the problem has been fixed with driers and proper storage facilities.
Concerning the $1000/ton to $200/ton stuff, Rich told me he wanted to mix in some low grade material (Think $80 ton stuff) with the high grade $800 stuff to increase mine life. So that's reasoning behind the spreadsheet change, the overall grade still increases however.
Not all is perfect, but there's far more good then bad! TARM is a producer now with CASH FLOW, and cash flow creates more opportunities.