More DRS Twist and Grist

It would seem that one would require a whole drawer full of whorls to spin all the yarns that a spinner needs to spin.  However, I find that 3 gang whorls with 3 different ratios on each is more than enough to produce a wide range of yarns.

I use a whorl that inserts 9 tpi to spin soft woolen at 2,800 ypp, firm woolen at 3,200 ypp, and worsted at 5,600 ypp.

I use a 12 tpi whorl to spin worsted at 11,200 ypp and woolen at 5,600 ypp.

I use 18 tpi whorl to spin worsted at 22,400 ypp and woolen at 11,200 ypp.

I use 20 tpi whorl for worsted 30,000 ypp.  Woolen at 30,000 ypp needs about 31 tpi, and I have not made that size whorl to work with the accelerator at this time.

I use 25 tpi whorls to spin woolen at 22,400 ypp and worsted at 44,000 ypp.  Woolen at 44,000 ypp needs ~36 tpi, and and I have not made that size whorl to work with the accelerator at this time.

Thus, 3 gang whorls is enough to spin the yarns that I want from soft woolen at 2,800 ypp, to both the worsted and woolen at 22,400.  If I need softer yarns, I spin a bit thinner, With the controlled takeup, that is easy.

I mostly measure grist by spinning 560 yards and weighing it to the nearest gram.  That is close enough for hand spinning.