Thank you, Johnny!
That is what I think too - that to weigh the stones brings more than to count.
The stones of flush 6 were the first I weighed. I had 13 grams on the balance and considered that about 2 grams had been lost.
Today I thougt, it was only about 5 grams - until I weighed it. It was 8-9 grams, with the lost stones I consider it was 10 grams.
From the results of these to flushes I estimated the total amount. A pitty I did not weigh before!
Elisabeth