DOES THE HDK SUSPENSION K-MEMBER HANDLE BETTER THAN A T-BAR SUSPENSION?

I have an HDK setup I ordered two years ago and have still to install it (I work way too slow at my hobbies) and am wondering where to purchase this 2" upper balljoint? I don't need a canyon carver, but if this balljoint improves handling I rather intall it before I get too far into the install with the 1" balljoint.