How often do you actually use a tool? In my experience I release more fish inadvertently with slack in the line, which is fine with me. Sometimes i purposely introduce slack so the fish is released quickly. A lot of times the fish unhooks itself in the net which is great!
i consider a fish caught when i can determine the approximate size of tfe fish.
Trout do not seem to hook deeply as much as other species. I do not fish blobs which seems help.
I just want to see the fish and see it swim away to be caught another day unharmed and with minimal stress.