Sometimes, you just got to know! "...and knowing is half the battle!" I've had bad experiences with name brand levers too. eg. motion pro, brake master I'm sure some were my fault and some may have been manufacturer differences and quality control.
None of the aftermarket stuff for old bikes is being made in USA, Japan, Germany, or UK. So, I had to check them for myself. There are some top quality stuff being made that will fit for top prices by bigger name brands. Just have to cross reference fitment. Like I believe some of the SV's fit our bikes.