Unfortunately they don't have any pictures. All they have are some simple descriptions at
http://www.zenwarriorarmory.com/ under the blades link. From what they say it kind of sounds like what they call a rapier blade is the heavier blade. If that is the difference is it mainly a matter of personal preference on the weight then? If it doesn't matter much I'll probably use the schlager, I hold the weapons a bit strangely according to our fencing marshall but it is the only way that feels comfortable to me. I use two fingers over the quillions, one on either side of the blade and a wide blade would make that difficult.