I doubt it. Perhaps if it's a digital filter. When you open a digital filter I don't think it will have any impact on the wave but with an analog filter the sound still runs through the filter circuit. Just a guess.
I can make you a SH101 saw wave if you like? I think the 101 saw sounds very close to the Virus saw but they might look different...
EDIT: OK i just made the "test" myself. I don't have a place to upload a pic. but its easy to explain. The 101 sawwave looks alot the the ION's. The positive and negative range is, unlike the Virus, almost identical. The "link" between the fall is not staigt but a tiny bit bended (upward).
Ok I'll find a place to upload a picture.
