I guess it depends on how you define manipulation.
I believe the silver price fluctuations are due to people fast-trading silver as paper.
They buy for ex at $35 then sell at $38. You could call that manipulation in the way that they try to drain off the market relying on trading speed.
How to defeat them?
Simple: find out the market(whole economy) justified price for silver, buy physical everytime you have money avail and the price drops to there. Then stop buying again and wait/accumulate fiat for the next time.
If all stackers/hedgers would do this, and inform newbie stackers/hedgers, it will end up with those fast-trading people drain off eachother.
In meantime, we stackers/hedgers drain off silver from the market (our stacks).
At some point, we will arrive at the contradicting situation of despite low silver price no physical available.
Byebye Comex/JPMorgan.
The end of their fast trading mechanism is also the end of the fast traders market draining off.
What remains: a silver market of pure physical trading and the corresponding stable price.
What does this mean: silver regained the role of money.
If you go then to a store just after some fiatmoney guy, and you let your silver blink, the store owner will look aside the fiatmoney guy, point at you saying "You first Sir", and while you're making your order some other store guy will blink your shoes.
And then we see some flowers bees and sunshine and we reach the end of the story.