I have +1mm Indy vales in my head now, but I see some new PEP valves on ebay for only $159 for +1mm oversized. I am building another head as some of you know, and was wondering if anyone has any views on this brand. They are made from the same shit as Indy's but are cheaper, might be a sign of junk? I dont know, thats why I am asking for inputs...Thanks