I don't think the JP Morgan thing will amount to much. I don't believe short-term manipulation changes the overall trend. So if JPM is put out of the picture, the day to day moves might look different, but the big picture trend won't. And since silver has 2 personalities, industrial and precious, you never know which one will show up on any given day, so I consider silver a toss up.
Platinum& palladium are sometimes considered PMs but I put them solidly in the industrial camp, so I'll be selling these into strength. While the charts for the metals still look great, the stocks weakened along with the overall market. Also, the period of seasonal strength will be over soon. So, it's time to think about leaving the party.