In my 10 years keeping discus i've NEVER had one jump. Never had a fish period jump out and all of my tanks are open top. If push comes to shove I can make a net for the top. Not a priority at this point.
The wild discus will be coming from Discus Hans, who imports them from Hudson (H&K).
Pictures are still coming, just haven't had time yet. I have these waiting also for the tank to bet setup. 6 of them, F1 mesonauta acora.