Ya know, I went back and re read the posts I was talking about and what I see was really my failure to see the whole picture 
I allowed those who posted bad things to cloud out the folks supporting them.
I even had two quotes ready to go including one that said "It seems to be widely accepted that a DSB will crash at some point 3-4 years out."
But the replies, although many not supportive of DSB's were also quick to point out "There still has been no proven, "wrong way" to go." and Tank crashing is anectotal. There's no scientific fact that because someone says their tank crashed that it was due to sand bad
My Bad
I allowed those who posted bad things to cloud out the folks supporting them.
I even had two quotes ready to go including one that said "It seems to be widely accepted that a DSB will crash at some point 3-4 years out."
But the replies, although many not supportive of DSB's were also quick to point out "There still has been no proven, "wrong way" to go." and Tank crashing is anectotal. There's no scientific fact that because someone says their tank crashed that it was due to sand bad
My Bad