Thanks for the comparison photos. Stahlville looks thinner in the middle. I like that cup at the end too, seems more useful than your standard 15 degree tilt.
Those 2nd gen Lobster and KTC wrenches look similar to Stahlville's wrenches, having an I-beam. Are the ergonomic of these Japanese wrenches better or worse than their German counterparts?
I have a question about these Koken Z sockets, which reduce dimensions and improve tolerances. Can't I still use regular torque wrenches on them? If not, does Kokon make specialized torque wrenches for them?