Can't really do it at home.
The spacing between degree marks are dependant on the diameter of the balancer. The larger the diameter the wider the spaces. I can't see how the degree tapes you can buy are accurate on different size balancers.
To do it accurately the balancer needs to be pulled and scribed while in a dividing head.

Ferret Instruments makes them for SnapOn. I went to Napa and bought the Ferret less than half what it was on the Snapon truck:drink:

I bought a Ferret 84 yesterday!
Haven't tried it on MSD yet, but it worked great on a Thunderbolt IV.

Does anyone know if it works on MSD?

Thats the same one I have and it works on MSD ,both my cars and the Hustler Ive use it on no problems:drink:

Thanks Rob!

:drink:

So, are you guys saying the Craftsman lights are crap? Or, are they just inaccurate with MSD type ignition?

I borrowed a friends craftsman adjustable light and a snap on adjustable light. Put both lights on the same motor and they read the same. I set the total timing at 3000 rpm, not the base timing. That should eliminate the multiple spark issue from the Crane HI-6M

I have used a sears light for 20 years the same light and it looks it . and works great. mds says to not use dial back lights as this was said before . I guess use what ever works best for who ever.

Like you said...
IMO those that run into problems with an adjustable light and MSD´s don´t set their timing at 3000+rpm.