Hotchkis Full Dart Suspension System

Yeah I was watching some youtube vids and it looks pretty nice. I am trying to figure out if I should spring for the whole set up or keep my front as is. It has a brand new PST set up with bigger torsion bars and a aftermarket thick sway bar. If you push up and down on the front end it barely moves. It is stiff. Considering alterktion is 5 grand at least I think this is a good option.