This chart is easier to see the channel, have not been able to figure out how to delete older posts yet. This chart includes the Armstrong pi cycle date line of early Oct. 2015 which according to my other work Platinum
and probably gold
should see their final lows. As for silver
I am not sure when its final low will come, it could come earlier than than the other as it was also the first to peak in 2011. Note on this chart the 100 cci
which has more room for downside based on the lows in the early 2000's.