Why did you reply to my comment? Do you want to make sure that others are dissuaded from trying light strings and thin picks? Pathetic. 33 years experience here. Keep trying maybe you get there someday...
Anyways, thicker picks always behave more sloppily than thin, especially with heavier gauge strings. This is because they are less flexible. This is a fact and not an opinion.
Sort of like comparing playing hockey with a pro style stick versus playing hockey with 3 or 4 hockey sticks fused together to make one thicker stick. Which one do you think handles the puck better?
Or say like if you needed to reapetedly strike a very small object, say 0.9 mm square, and at controlled intervals. Which would be a better tool, a lightweight, thin, flexible hammer or a heavy, thick, large hammer?