Hi, Following Efraim's suggestion I arranged a new patch around the tuning option. I needed to patch Zig itself to use baseline cpu by default, which is safer in general for us. If anyone need a more specific cpu, can use the tuning option to choose it. Maybe I should split the changes in Zig and the tuning system, but if I do they wont appear together, and they mostly only make sense if applied at once. Please let me know if you like this one better. Hope it's cool. Cheers, Ekaitz