Why is it so hard to get good advice !!???

**** UPDATE *****
I decided to mount the degree wheel directly to the crank using the stock dampner bolt. This move eliminated all the slop and helped accurately determine true TDC. I degreed the cam and came up with a 73 then a 139 number. This adds up to 212, which when divided by 2 equals 106. I almost crapped myself! The cam card calls for an installed centerline of 106 and I am exactly at 106 with no additional work needed. The timing set is at the ZERO/Dot-to-dot position. The sloppy fitting crank turning hub was giving me a 110 number with the same timing set position. THIS is why I didn't want to assume that the approximate 2 degrees of slop equated to a 108 C/L number. Relying on a degree of slop is still inaccurate.