One important thing to note is that the drop rate is said to be "without memory". That means that the drop is independant of the earlier drops. So the odds of getting a d chain at the 259th kill is the same as getting one on the 1st kill. Is know this is not much info, but it's just to note that the probabilities are calculated in a stochastic way (i.e over a large number of drops). The essence of this post is just to say that don't have your hopes too high on drops if you have been training on the same monster over and over in hopes of getting a very good drop. Having killed it 1000 times doesn't give you more chance of getting a rare drop than having killed it 10 times.
Ok, it is well known that wearing a particular camo suit (made from kebbit fur) decreased the waiting time between setting a trap and getting the prey. But i've heard that, for salamanders, ANY camo suit can be used. Does that include the camo rewards from the random event (the one with the "army training")?