Since day 1.
Evan, I wasnt lookin down at all. In fact Im throwin you a bone and tryin to save you from wastin your time. The first guy to put up a questionable new tech here was 'gpound187'. It was one of his first posts on the site as well. Some of us told him kinda what I told you and I dont think he has landed or even thought of the sub since. And he also has won several tourney golds under his belt since.
The main thing every good guy will tell you on here is to land it consistantly during freeroll, then think about postin it. For your own good. If a guy has full posture armbars are out of the equation. You see that big gaping whole between your knee and his body? Well, if he really didnt want you to break his arm he would take his right hand(the one that is flailing like he is riding a bull) and simply move your foot and leg. You have no control of him, and would be better off 'throwin up' wild triangle attempts, or even better, manipulating his base with hip bumps to sweeps or posture breaks. Take your techs to an open mat at a school and see if they work. If you land it on a competent opponent I will eat my keyboard, record it, and post it.
When I first started me and my buddy thought we invented a game changer once. It was a calf crush from lockdown that, while drilling(not freeroll), seemed to be deadly. But I remembered the advice about freeroll and decided not to post. Thank god cause not only has it bin done, it isnt high percentage at all. I still land crazy subs ive never seen before all the time but realize that a setup to making it high percentage is everything. Keep drillin AND rollin. But I recomend drillin Eddie's techs till you start landin them consistently in practice then see what comes out. Best of luck. and yes, I know Im an asshole(along with jmw). An honest one.