"Not sure this is the best time to buy more. Silver and gold need to bottom first and it certainly looks like the massacre is not over yet, although with today's nasty sell off we should be pretty close to it, if not well I jut can't imagine how low we can go."

The massacre is not over but it is a temporary event. Temporary because it does not address the fundamental cause of the problem but just placed another band aid on a serious wound.
Buying back long term treasuries and converting them into short to mid term solves nothing but just moves around the dice. All this provides is temporary opportunity for some financial institutions to move from stocks and even bullion and into those shaky treasuries. Those treasuries do not pay interest but on a temp basis they are assumed to appreciate in value over a short period. Once it is over that cash will come back into stocks and bullion with a vengeance.

As they push the prices of precious metals down this offers lower cost opportunities for the Chinese, Indians and the like to fill up on cheap PMs. This action only accelerates the flow of bullion into those hands.

Lets say that the stock prices will thake a shellacing for another ten percent, so what? If you buy now you temporarily loose that ten percent but if you wait until the system crashes you are likely to get a ten fold return. Is that not worth the risk? Why wait for the very bottom and possibly miss the opportunity?