The Tharp Series rods load well, cast well and fish well. They are not spongy. Even the jerkbait and Chatterbait rods seem to have a little extra backbone. Tharp has made a killing with a jig, a swim jig, punching, flipping, pitching and grinding. All power presentations that require a little more meat to get the job done.
These rods are a little more powerful I felt. Like the square bill rod is a MH with a Mod Fast action and composite materials. So you get more parabolic bend but have some meat to the backbone to be able to move fish out of cover.