I bought my 20C from a heavier guy. He told me that there was lead plates above the tail skid and that you have to pull the rudder to get at them. I took the W&B and calculated what weight I needed in the tail for a suitable CG for my weight. Got that done before my import airworthiness inspection. The folks who did the inspection brought out the scales and weighed the glider outside. The glider lost quite a bit of weight courtesy of the light breeze as I found out comparing to the previous W&B.

So I took it to a highway weigh scale early one morning when the air was still.

I gave the lead plates I took out to the next owner.