Milimetr, my initial impression of Arche HS in comparison to Ikeda HS is quite positiv,much much better than current in production phasetech headshell. Not night and day or anything like from Ikeda but I feel the transition from bass to midrange to treble is more coherent. Everything sounds a bit more natural, a bit more detail but relaxing. Mind you, this is only after a few days of listening and headshell leads was changed from Ortofon silver wire to Acrolink 8N copper leads as well.SRA adjustment can be done as mounting plate is attached via a hinge screw up front so you can tilt the mounting plate down in the rear with another screw. I am not sure how useful that is. On Koetsu cartridge with long body, if you tilt the mounting plate just a little bit, bottom end of the cartridge body would hit the LP quite easily.