Hello All,
 For those that have thrown both of these urethane's: the Supernatural, and the Natural Pearl is there much difference between them?? also, which one would be more of an med-oil ball. Thanks   

Neither is a medium oil ball unless you rip the cover off of it with 550 rpm rev rate.  The Super is stronger overall and more on the backend since it has a "touch" of resin in the cover as opposed to the Natural Pearl.  Both are still going to be light oil condition balls.  The big difference is that the Super has more movement on the backend because of that touch of resin.

I only have the SN and it is definately not a medium oil or greater ball.  I just got it, and being stubborn, I used it last night at league.  Fresh oil, Highway to Hell pattern, old wood.  DID NOT WORK VERY WELL....LOL.  But for the most part, I stayed with it just to see what this ball can and cannot do, and I definately found that out. 

Thanks Stormers...

I absolutely love my Supernatural. I’ve got a 45°, pin down, 5” to PAP drilling and teased the surface by hand with a dry 2000 abralon pad to knock down a bit of the shine. Never rolled the box surface and never dulled it further.

For me the ball allows me to play a light swing 10 to 5 or directly up 5 for a smooth roll. Is it a medium oil ball, depends… what line would you like to play on the lane. I can send the ball straight down the 5 board on fresh oil and carry consistently. When things start breaking down I can migrate to a light swing. That being said the migration is very slow. If it sniffs any oil you're inline for a bucket or maybe even a 5 pin.

I would suggest a Rumble as mentioned above. It'll give you a similar tpe of ball motion without being so sensitive to oil.