Canx your order ASAP, and save up a little extra cash and buy something/anything in Stainless Steel

Then only use Shockey's Gold or Pinnacle powder and you'll be all set

Seriously, SS is the way to go. I've done both, and SS wins hands down! If you must have an Optima, IMO, get the Optima Elite in SS. It has a stronger action and barrel than previous models, and you can add CF barrels to it later