Yeah, I see this word a lot. Every time someone says the word “Tech”, it means something else. Sometimes, it means more string being used, sometimes it means more string layers, sometimes it means smaller string segments, sometimes it means hard tricks to hit consecutive, and sometimes, i don’t even know what its supposed to mean.
I think that tech really refers to more intricate motions and string segments. A techy trick most likely involves many steps, and isn’t too easy to figure out by first sight.