Nuttin' fancy here. Hole drilled in edge of bench with a screwdriver dropped thru bell hole. Has worked ok for as many as I mess with but, might make something better next time around.
Is the screw driver from Harbor Freight?
Tony
70 AARCuda Vitamin C 71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield) 71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas) 71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)