Man, you have this thing down. Maybe you should be their Sheriff.
Also, the family had a nasty habit hiding all signs of their occupancy of the crackhouse (per their statement).
They obviously didn't keep it too hidden after buys were made from the house.
If I were the sheriff, no knock warrants in my jurisdiction would be against policy, unless imminent loss of life might occur, and if that were about to happen, no warrant is required.