Do you know the length or effective mass of your particular Schröder Ref? I have two different SQ examples of this arm, and the shorter of the two (253mm effective length) with its 'swamp-oak' armwand, did not seem to have sufficient effective mass to be fully compatible with the low compliance of the Shilabe (though the heavier/longer arm had no such trouble). On a few tracks that have extremely intense sub-bass the cartridge would fail to track and actually jump out of the groove from resonance. To be clear, this was only on a few extremely intense LF torture tracks. That said, with most music the combination sounded terrific, and the arm mates beautifully with no issues whatsoever with the Kansui and Madake- I assume due to their slightly higher compliance. I don't have any experience with the Fuuga, so can't shed any light there. I hope this is of some help to you.
