Me, too. Sort of. I did not note handle diameter or slight variations in winding length, nor did I graph it.
But w/o leather I average about 1g for tinsel, 1.5 for whalebone, 3.4g for 0.22 silver and 4.2g for 0.25 silver.
The greatest variation is probably in tinsel of different types.
Leathers average around 1g but I might add that I'm not a fan of thick or large leathers. A small French style leather (18-20mm) can be as little as 0.4-0.5g.