I'm working on adding a bunch of the German terms to the glossary so they'll highlight. That'll help everyone out. I know I have a hard time keeping them straight myself.
Don't worry about the same vs mixed weapons issue for this discussion. We mix it up all the time in class, but this discussion sprang out of the longsword demo we performed at VARF, so for the sake of this discussion, it's OK to consider just longsword vs longsword. Also, with the German system, it's really not any different if you switch to single-hand sword, or sword and buckler. The techniques change very little.
With reasonably well made steel swords, we can do thrusts safely, as long as people wear their gorgets or at least have a decent bib on their fencing mask. We do just have to be careful to keep it under control.