I have three of those TC U-Views and find that they all throw light charges.

Using GOEX FFg as a base, one would expect a 100 grain measure to throw a 100 grain weight charge. However the U-Views average around 90.5 grain weight when set at 100 grains volume, filled to overflowing and cut off without a tap down. Tapping down the initial fill and topping it off again before closing the funnel yields a charge of about 94 grains weight.