Yeah to keep the baits perfectly level the plastic formula has to be weaker. I went with tougher plastic to keep them from being the dreaded 1 fish baits. The tougher plastic formulation causes them to have a slow sink. These are currently being reworked as I am changing my production method on these so that is why they are all sold out. So maybe when I re release these they will have a few plastic formulation options we will see.