Had one on my ATK250 and liked it. Very adjustable and nice, even pull. I purchased it from American Dirt Bike. You might want to ask around about the Hebo system also. Heard some nice things about it.
Hi, welcome to cheap bastard’s corner.
Lighter clutch required? Try adding about ½” into the piddly little actuator arm on the engine case (haven't seen if this is possible on later model KDXs, but don't see why not). Next step I concede costs money. Buy a decent accessory clutch cable (I think mine was some silly name like Terminator by Motion Pro or somebody). But they are tefelon lined & I believe the outer is constructed to not flex axially so bad.