Flap Discs???

[Rick D]

So what and where does antone use for flap disc grinding discs?? I have use so many different ones lately but can't find and that either last a descent amount of grinding. I have bought the cheapest sh!t from Harbor Frieght to the most expensive ones from Walter. Yes the cheap is did last very long but the more expensive did last that much more?? So anyone got a good source as to where to find good ones??