the "wrinkly and claw " appearance is a sign of too much nutrients. I too also followed the recommended amounts on the bottle labels when I first started growing. What I have learned is " Less is More ". You also have to remember that every strain is not going to be able to handle going full strength with the nutrients. It is basically a learning process to see what the plant can handle, and if the leaves start curling, you should cut back on the nutes.
You will be able to tell by looking at the new growth if the changes you make are effective.