I played around in a spreadsheet a bit and changing the r/c wouldn't change the ter that much. It also will drop the efficiency which is bad. It looks like ter is going to be really small no matter what I do. So in the worst case manufacturing scenario they would just have to make it bigger. I've never heard of any issues not being able to meet ter in manufacturing though. It's possible they didn't bring it to our attention, I'm not sure.