Cartridge mounting on graham phantom

Got the same problem , second position arm tilt back at begiining or end of disk, arm must be posizioned perfectly with ghaham mark nearest possible to platter. in addition smetime is needed to lower cart putting some spacer below the shell. only way to get out of this problem who was driving me crazy.

Ezio

i had a similar problem whereas my arm height was too high
for my koetsu
i solved this using the cartridge mans isolator.
a thicker platter mat would also have solved this