I think to go strictly by triches is a mistake.. Just like going strictly by pistils changing colors etc.. Its a combination of a few factors and you just want to wait until the plant is done.. Otherwise you'll be wondering why all you're ever ending up with is a bunch of hairy ass bud instead of that nice sticky chunk.. To think that plant is "nearly done" or "aint gonna be long" is kinda right in the sense that a few weeks is not a very long time, but if you bring it down any less than that 56 and you're just short changin yourself..
Besides it looking hungry, the plant looks nice!