detail on how emulators work: https://www.racetech.com/page/title/emulators-how%20they%20work
how to cut preload spacers: http://sonicsprings.com/catalog/damper_rod_forks_tech_article.php
svrider discussion on 6 holes vs 4 big holes: https://www.svrider.com/threads/3-8-damping-rod-hole-sufficient-for-emulators.332329/
diy-ed damper rods: https://www.mad8v.com/products/damper-rods-for-use-with-emulators-2g-sv650-03-09?_pos=6&_sid=926fa806a&_ss=r