The Tunes are great hubs. I do lots of builds with them and for their weight the only hubs that can beat them are Alchemys. I would say that they are a great upgrade if your looking to save weight.
Kinlin Xr300 24/28
Sapim Cxrays
alloy nips
Dt 240s
weight 1507 grams
Kinlin Xr300 24/28
Sapim Cxrays
alloy nips
Tune Mig 70/Mag 180
weight 1441 grams