No prob Gerry, can't wait to read/see your results. If you don't mind, please pop in & post your results (good or bad) later this week on AA as well. There's an ongoing discussion in my sponsor sub-forum. Thanks!
I look forward to reading your results over here on MFK as well.
With regards to feeding O's, personally I would recommend the floating 4.5mm Jumbo Fish or the 7.5mm Extra Large Fish formula, over the 10mm Mega Fish formula. Most oscars will have a much easier time consuming the smaller, less firm/dense, floaters, and find them far more palatable. The 10mm Mega is better suited to large fish, that won't mess around at eating time. Large catfish, stingrays, carnivorous plecos, datnoids, pbass, etc. I've already had some cichlids smash the 10mm back with no issues, but the results will most likely vary depending on the individual fishes size, and aggression level when eating.