Heavy cart on Technics GR

@cleeds  yes and now I know that heavier aux weights are a thing. I have a set coming to me.

It's likely that the cart simply is too heavy for this arm. Even though you can balance it and add proper VTF, it's probably going to result in a resonant frequency that is too low. Tracking problems would be the result.

@cleeds @gochurchgo It is possible that there is a mismatch at play, but with heavier aux weights the setup of the counterweight’s center of gravity will be closer to the pivot.  This is known to change the effective mass calculations and possibly leave us in a place that the resonance is more appropriate.  

@drrsutliff upu may be right. I’ve been searching for an arm that would be a better fit. Not sure yet.

cleeds discussed the problem correctly, I think, but did he fail to take note of the weight of the standard Technics headshell? Because all that matters is the difference in weight between the standard Technics headshell and the Phasemation headshell, which if the Phasemation weighs only 13g, ought to only add a few grams to the calculation.  As for the counterweight, the CW adds to effective mass by a factor equal to the square of the distance of its center of mass from the pivot multiplied by the weight of the CW.  So, to minimize effective mass, you want the heaviest CW so you can get it as close as possible to the pivot.  Like someone else already said, use a digital VTF gauge, not the markings on the tonearm, to set VTF.  Taking all that into consideration, is there still a problem?