Hey Toofuzzy,
I use a graduating percentage based approach for sequential buys as price declines as opposed to traditional monthly review, minimum 10%, etc. So, my buy targets (and sells-although not graduating percentages) are always in GTC orders until triggered and anecdotally I seem to achieve a bit more action with volatility. I've now had two buys in a row on SLW...if a third sequential buy triggers that would be an approximate total decline of 68% since my last sell price. This is strictly a personal approach to Aiming as a result of 2008/2009 when declines were typically between 60 to 80 percent on equities/indexes. This method prevents 'my' history from repeating and allocating too much cash before real value is presented:)
Best, Alton