Looking pretty good so far...

The leaves that were affected by the spraying in sunlight will likely not improve, but they shouldn't get worse. New growth will be your indicator.

The spots are caused by one of three things I can think of:
1) Lack of calcium. Molasses in your regimin can correct this.
2) Bug bite neckrosis from individual bug bites making dead-spots.
3) Leaf tip irritation from leaves rubbing or 'tapping' against/on other leaves. Been windy there?

With a consistent feeding schedule you will have much better results.

A word or two about Superthrive.
Rusty Trichome Reviewed by Rusty Trichome on . Pest Spray has burnt my leaves Hello All I have a female outdoor Frisian Dew plant which is starting to go into flowering. It is 3 and a half months old and 4 foot tall and growing! I noticed a few of the leaves had started to get eaten on the sides so I went to a reliable shop who told me that a product called 'Bug Clear' should do the job. Stupidly today I sprayed it in the full sunshine (was a very hot day today) and I have now noticed that quite a few of the leaves have gone a bit brown/burnt or stained. My Rating: 5