On Thursday, December 27, 2012 11:08:12 AM UTC-8, wrote:
I just received my Mark IV for Christmas. I appreciate the detailed instructions. Should I use any type of specialized instrument to trim the length of the yaw indicating natural fiber unit?



XF

MKIV's are made with a long yarn so the owner can trim it to the preferred length. No specialized instrument is required, though chewing through the yarn makes for a ragged end.

Early MKI's were mostly trimmed using a sharp flake chipped of a handy flint rock. We've come a ways and now a pair of scissors is the suggested device. However, lasers, meat cleavors, shaped charges, or any of a number of other devices might be pressed into service. Use your imagination.

Don't forget to re-knot the end.

bumper