Roelof Thanks for confirming what I supposed. Been out of this for 20 years and maybe what was fine then isn't ok nowadays but seems the same recipe that I've used to break-in the most stubborn b*tches in the past (Sirios, Ninjas and such) with a lwell earned reputation of creating doom on starter boxes

Took a quick grasp on the manual of OS Engines and they mention something that found many time ago and is an overly lean low-end needle masked by the overly rich high speed needle and they talk about this. Looks like I'll like a lot those Japanese mills (the old R21 VZ piqued my curiosity...).