Three of Coins, New Exotics, New Xur experience. Destiny The Taken King

Three of Coins, New Exotics, New Xur experience. Destiny The Taken King 

Is it worth to by Three of Coins? 

What is the probability of the Exotic drop?

Here is my experience and suggestion:

use 3 coins at a time (stack) before the mission; simple mission is Eye of the Gate Lord, another good place - Court of Oryx.

Yes, with more coins stacked probability of the exotic engram drop is higher, however I feel this is regressive - more coins you add - less the added probability per coin. Optimum is 3 in my feeling.

My result for last week:

Used 77 Strange Coins to buy 11 packs of Three of Coins = 55 of Three of Coins.

Run around 10-13 times.

Got 4 exotic engrams: 1 armor + 3 exotic weapon engrams.

Average spending per 1 exotic engram = 19.3 Strange Coins.

Have a nice game!

Destiny Taken King exotic engrams farming.

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