How did the decrease in DEC price affect your DEC in the pool? Did that shrink the amount of DEC you held?

It decreases the amount of HIVE :D
If Dec goes down in price, it looks to balance, so HIVE "moves over" to become DEC. It is just a normal pooling thing, same as CUB or Pancake.

I suspect DEC to take another hit once the second Rank Play is introduced. We are likely headed back down closer to $1/1000 DEC.

I have heard this too. I suspect it is correct :D

Also (I hate to be that guy) those are lobsters not crab you have pictured. King crab / Snow crab below.

Yes, I know. But, since I only use my images in my posts, that is the best I could do. They are actually freshwater crayfish - and they were delicious!