The cart is a Soundsmith retipped Denon DL-S1, alignment with a Mint protractor on a Audiomods Classic arm. I tried 1.15 to 1.5g VTF as well.
I tried a few VTA settings to no avail. So I decided to recheck my alignment, and take my time. You see, I can can set up a Denon DL301mk2 - Dyna 10x5 and a few others lickity split! But I found out how critical a severe stylus shape can be to align. Close is not good enough! The sibilance is now gone.