Delos is an excellent cartridge that does ride low but this should not be a random thing. Its also very sensitive to all adjustments. Not sure why your tonearm is not set to be parallel to the record surface. If after setting up everything as Lyra recommends for Delos you still get this problem occastionally it points to damaged suspension. I can tell you that Alasdair the Lyra distributor contact is the most helpful gentleman to deal with and he will suggest the way to address your problems. Good luck.
