The extra camber with the TT control arms comes from the control arm itself, not just the bushing.
Personally I'd skip it all and just get the spherical bearings. They are the only bushing that is a performance upgrade in the sense that you can see results in lap times. Poly/Rubber/Delrin give a nice road feeling, quicker response, but they won't do anything for lateral G's. In some cases poly especially has negative effects because it's so bouncy like a super ball. So it makes the suspension arm bounce laterally over uneven surfaces, rubber band effect. It just feels like a "wash out" in the driver's seat and you might not even know what it is until you switch to Delrin or just plain steel (spherical bearing).
A great example is the multi-link independent rear suspension in the MKV. If you've ever completely removed the spring, shock and swaybar and tried to move the suspension up and down you'll notice that it binds and gets extremely difficult to move more than a couple inches. You probably did something like this when you were installing coilovers.
Anyway the reason it's so hard to move is because of all the rubber bushings. The suspension arms move in an arc so as the suspension moves up and down the suspension arms are rotating on the mounting point in multiple directions. Like your shoulder or something. Well imagine instead of nice smooth cartilage you had rubber in your shoulder. Your arm would always bounce back to the resting position and the further you tried to move it from there, the harder it would be. That's exactly what is happening with rubber bushings, poly makes the effect much worse.
The negative aspect of this is the lack of sensitivity your suspension now has. Imagine trying to pick up a full glass of water without spilling it using your rubber shouldered arm. You'd still get it, but you'd likely sling water around a bit. The same thing is happening when your suspension is trying to deal with miniscule cracks/bumps in the pavement. Instead of moving .1mm it's moving 1mm and the tire is spending less time in contact with the pavement. That's the benefit of spherical bearings and you can really feel the difference. It doesn't feel like you're trying to put on your shirt with baseball mits anymore, best way to describe it.
