Plus they were pretty subjective at times anyway.
I realized that, in about three minutes, when I got back into slot racing, in late '81.
If the long end didn't come of the hook, effortlessly, it was an exercise in futility, and even then, it seemed like repeatability was iffy.
I used Koford springs, stock, 99% of time.
When I didn't, I just matched them visually.
Mike Swiss
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder
17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)
Note: Send all USPS packages and mail to: 692 Citadel Drive, Westmont, Illinois 60559