They eat it just because, they eat it good, and as fishermen thats all we need to know.

But, I am convinced its the combination of weight and wiggle that does the fish in. The weighting is perfect. Ive tried many of the knockoffs, and the reason they arent near as effective is because the weighting is all wrong (assuming we are talking just fishing t-rig weightless; sure, they all work using other presentations).

IMO, other than the birth of swimbaits, the senko is the most innovative and effective bait that has been created during my life time. Which reminds me, I havent thrown them in 2 years and I need to get them back into my routine/arsenal.:P (just as soon as I get off this dang darthead kick Ive been on lately).