The problem when you start making small baits is all problems are magnified. Did you add any ballest weights to these baits if so where?Nose also looks to be higher up than the rapala. Just guessing off hand wire looks heavy and too high( right above center balance). The weight of the wire high in such a small bait might be some of the problem. Notice the blue bait line tie sets lower in the bait. Lip angle may be a hair too steep also on the tigers. This all a guess, I dont make such small cranks, but like I said all problems are magnified when you down size.