Help diagnosing sick plant Please!!

Hi all, newbie grower...everything was going fine until 2nd week of flowering. This is an outdoor grow, mix of soil and perlite in a 5g planter, white widow dinafem seed. I noticed some of the leave tips were burnt when switched to flowering nutrients, using Fox Farm Tiger Bloom and Advanced Nutrients Bud Candy. Backed off on strength and new growth was fine. Then leaf tips started to bend upward and some downward depending on which leaf. Next came curling or canoeing as ive seen it called. I figured it had to do with the heatwave my area is experiencing. Decided to check soil Ph in runoff, found it to be pretty acidic so flushed till soil Ph back to a steady 6.5. Followed with a very light feeding. Still noticing more leaves canoeing (mostly fan) and now some interior brown spots. Leaf color seems healthy and so I am have trouble discerning the issue. Any help would be greatly appreciated! some pics:

You have a lot going on so it is a bit difficult to answer. Outdoors you don't get that much heat stress in your leaf structure if your plant is adequately watered. So I'm wondering if your pots are large enough for outdoors with that size plant? Are they wilting daily on you? If not, I would think the issue is either broad mites, which sometimes display damage with rolled edges like yours, or it is a nutrient issue related to your feeding/ph issue/flushing.

This might help:

Doesn't look like bugs..... does look like heat stress due to too dry of soil. They look good, if new growth is healthy doesn't look like too much to worry about.

Keep the nutes down and all will be fine.