The HPH was a great oiler for me back in the day. It did have a high RG core (2.60), but with a very aggressive, high load particle coverstock. I was often able to play quite deep on long patterns with in and still get good back end "pop" with it. Unfortunately, my HPH died an early death, as did most of my particle coverstocks back then despite attempts at resurfacing, rejuvenating, etc. They were never the same after a while. I also doubt that the HPH could compete on today's lane oils, even if you were lucky enough to find one that is new.
As an example, I also had great success with Brunswick's original Danger Zone when it first came out. Although not a particle ball, it still could not come close to performing for me when I threw it last year. It skated like a dart. A lot of it depends on the bolwer's release. Power players will usually have more success with vintage balls like the HPH than will lower rev players.
