I mentioned this in my other thread, a piece of research I thought might be lost to the world - lol. This was carried out by a materials scientist on an old bass fishing forum site, now long gone, who took a bunch of stick baits and ran them through gravimetric analysis to determine their salt content. Lots of data in this little picture graph. The 35% salt content is apparently about as high as you can go in a soft plastic bait and still have enough plastisol to maintain shape and some degree of cohesiveness. It's also why Senkos fly off the hook so easily. It affects density and fall rate, also shown in the bars to the right. It also confirmed that the Senko and the Kinamis were basically one and the same bait, among other things.

 

Oh - just try this on a Senko - use a sharp blade to cut a cross section. Use a magnifying glass to look at the cut end. You'll actually see grains of salt.

Some manufacturers have what I would call more of a salt solution mixed into the soft plastic. Typically not very harmful to durability. But when it's really granular salt in the mix, durability takes a big hit.

 

 

Karl