Maybe a year or so ago a guy had a new set of Aussie EQ heads for sale on eBay, he was asking roughly $2000 for them. I do not remember if they were bare or not, yes a obvious difference but still. I bought many in the $350 each price range. Ya, wish I would of bought more but never seen this coming. I have never had a set of r/t or rhs heads. The EQ heads were popular here for circle track guys, they even were a national imca sponsor for awhile. If running one of these iron head classes you would surely be giving up a bit with a factory head. The new EQ heads look identical to the speedmaster iron head, I think they would be a good head for a daily driver, but the ports seem small to me. I believe someone on maybe Abodies only threw a set on the flow bench and they weren't pretty. Not sure if they guy on EBay sold them heads or not, I didn't follow up on it.