Now we have perspective. Approximately 2% of Class Bs are stocked, 10% of Class B+Cs, and 19% of everything below Class A. Oh the humanity or piscimanity.
Well, he didn't give the total mileage of any of those classes, only all of them combined. So you can't say, from these numbers, what % of class B's, C's, etc. are stocked.
Based on those #'s:
51% of stocked trout waters also have wild trout.
19% of wild trout waters are also stocked.
^^This follows because the total number of wild trout miles far exceeds the total number of stocked trout miles.
Of that 51% of stocked trout waters which also have wild trout:
66% are class D
24% are class C
11% are class B
0% are class A
Disclaimer: I'm using the numbers above. I know that a few class A's are actually stocked, so something's wrong here. I also know that this only includes PFBC stockings, not private stockings.
My own point of view: I won't take the idealistic approach and say they should never stock a stream with wild trout. Many of those class D's are token populations only. Not capable of a real sport fishery, and not capable of improving if stocking were ended. In most cases, water temp is the limiting factor, not harvest and fishing pressure. Some may not even have wild trout all year long, but rather, only a few seasonally sourced from upstream or nearby tribs.
But, the current line is drawn between class A and B. I'd probably draw the line between C and D. Meaning that 0% of class B and C streams would be stocked, but class D's would be unchanged.
And, I think you'd find many of those streams would be viable sport fisheries (ignoring legal size limits, by the way, which is meaningless to most as most are C&R). Many already are, as soon as the opening day crowds are gone they are decent wild trout fisheries, even at a low class C. I also think you'd find that many of those are the ones that would improve in population when you end stocking. Because water temps aren't their limiting factors, and they already hold solid year round populations. In some cases it's harvest and fishing pressure limiting the wild populations. In others it's lack of structure and/or food abundance, but even then, competing against stockies for the limited resources certainly hurts the cause.