Ease up on the feeding and see what happens. Those dots look like http://www.growweedeasy.com/manganese-deficiency-cannabis
But this has only showed up for me when I've used to much P in my soil. This causes the PH to dive and not allow manganese to be absorbed.
Calcium D looks like this as...
Looks like you have "The Claw" aka N toxic. Also being that the burning is between the leaf veins that's common with PH issues. Check out
http://www.growweedeasy.com/cannabis-symptoms-pictures
And look at the pictures and descriptions.
Looks like it could be PH issue but these things are hard to pinpoint from pictures here's a link to help you out
http://www.growweedeasy.com/cannabis-symptoms-pictures
I'll be in Missoula 12,13,14 and am looking for a Montana Silvertip cut. Or any other killer finds. Let me know what's out there. I also will be looking for a little flower while there just so I don't have to drive through Idaho with any on the way.
I'm always popping beans in search of something nobody else has strains, phenos exc
I'm popping some heirloom skunk right now Salmon River Quiver seeds it took me 20 years to track the m down
Man just seen this post
I grew up smoking this stuff everywhere front Riggins to Clarkston and would love to get a cut of it
Its the smell that I'm really looking for man that stuff was stinky