How can you use a scent with them
All you do is apply some paste scent (I recommend Krill for steelies) to the skein or the bait itself. If you use a liquid or spray type scent, just dip the bait in it or just spray it on. The skein will hold the scent for a long time.
What makes these baits so special
The baits are special not only for their resemblance to real eggs and roe. Is the variety of ways the can be used. To create multiple sizes and colors to fit the waters you fish
How do you make them look like roe
Simple. First you would tie your leader to your mainline. You just tie your hook on a leader. Then you thread a single egg with skein onto your leader, Then you would just thread as many single eggs as you want to get the size you want. The more you stack the bigger your bait will look.
How long do they last
They are semi soft and very durable. The skeins will sometimes come off eventualy. Then you just use the egg as a stacker egg. The single eggs under normal use will last for years.
Can they be used for flyfishing
Thats the beauty of these baits. Flyfisherman and traditional gear fisherman can both use them easily. Because they slide up on your leader. They can also be slid right onto your hook if you want although that decreases their life.