Do the new baseplates still say USA made?
I don't think any trucks are USA made any more, but before anyone starts with the quality issue or whatever, they all still do exactly the same thing as they did before and really there are almost no differences in quality from what I have seen and heard.
The best turning hack I've found for Thunder is add a riser. I know a lot people aren't into risers but they 'destabilize' the trucks in a good way. The higher the truck the more leverage you have over it. 1/8" riser and broken in stock bushing on a 151 (cast plates only) - feels pretty good to me.
I feel like the best overall height for trucks is around 54 mm, but that is just me. Boards I ride that have Indy trucks (55 mm) have no risers and are good with most wheels up to 56mm. Boards with Thunders have thin risers and they feel so much easier to skate with anything up to 56 mm wheels as well, but I have a couple of sets with much smaller wheels (less than 50 mm) and no risers, which skate fine.
Funny how people complain about wheelbite but do nothing to lift the trucks, when even a mm or two makes so much difference.