Can you confirm that there's an error with the description of Tech Use. Every class gets tech use but only tech priests get trade (technomat). However, trade technomat is described as the skill used by the uninitiated. Also, tech use is described as the skill used for crafting tech items even though in every other case case it's trade (whatever) skills that are used for crafting. Surely the tech use skill should be for using tech without a deep understanding of its inner workings and trade (technomat) should be for crafting tech items that don't fall under trade (wright) or trade (armourer).
Also, Knowledge of tech items should be under common lore (tech) not tech use, right?