When you are running meats and streamers the adjustability is pointless, your car will corner like crap anyway.
They do little or nothing even when you are running a standard wheel and tire like 14s or 15s with some BFGs.
They are however useful when you move to a real performance wheel and tire package like abodyjoe is running.
The weight savings is insignificant on all but race cars where weight reduction becomes a priority.
In the endÂ….. If you choose tube control arms you should only buy the best quality. Often people buy crap like this simply because it looks cool.