The K-Chub is based on the semi-oval Chub Grub body. While the tail itself is thin and moves easily, it is large with a wide base causing it to really displace water and cause a serious thump.
The 2.5" mold is a 6 cavity mold.
The 3" mold is a 4 cavity mold.
The 3.5" and 4" molds are 2 Cavity Molds.