I fished the 2.8 in the "Sexy Shad" color on 1/8 oz realistic looking jig heads in both regular and underspin style. I clipped the rounded heads back a bit to make them snug up to the jig heads better. I'm a believer in realistic eyes and profile.
Up until now, the only swim baits I've used have been Big Hammers and they've caught me a lot of fish. I always give them the hot water treatment to soften them up a bit and make them swim better. As you probably know, the "secret" to getting the best action is careful hook placement. It has to be centered side to side and it has to be the right distance back so it sits naturally on the hook.
The main difference I noted right away with the Keitech baits is they are softer. According to the [You must be registered and logged in to see this link.] they are also salted and have a squid scent. I understand the salting gives them a higher density and so they sink better and I did notice that they sank better than I expected on the lightweight jig heads.
They also have a very thin "hinge" section connecting the paddle tail to the body and so it gives very good swimming action at low speeds (meaning on the drop).
The only drawback is the softness equates to a lack of durability. I had two of them get bit in half by mackerels and they rarely survived a hookup and catch. At $9.00 for a pack of eight, they make me want to figure out how to pour my own.
If you're a swim bait guy, I think these are worth giving a try.