Ann: Commencement of RC Drilling at Stephens Trig Zinc Project-SCI.AX, page-4

can you guys give me any idea about RAB drilling, what time frame before news, what kind of results it gives? apologies I know sfa about exploration

taken a small punt on this one based on zinc getting more exposure (the index got cooked last couple of days and it's taking a breather at resistance but long-terms trend looks good with those LME warehouse charts)
http://www.**promotion blocked**metals.com/charts/zinc_historical_large.html

saw this chart spike on volume after the drilling ann 06/04 and it's held the top of that candle well, with almost no volume / no supply since... won't take much in the way of news or volume to send it to 040. i'm just not sure what kind of news RAB drilling gives us?
thanks