That's really the beauty of this product. It truly is study sim level in every way, even with these small left out portions Tom speaks of. And, the reason why I can justify this is because Jan has thousands of Captain seat time in the real 737-300. These items left out, in his own words, are things he rarely/almost never ended up utilizing in real day-to-day tasks flying this bird in the real world. It was imperative to achieve every aspect of the simulation/FMC that he did use, and do it with great accuracy. Even better is the commitment to finish these items in a later update, even if they will essentially rarely (if ever) get used by the masses. Bottom line: What you will get with this product is what real 737 Classic pilots would use on a daily basis, and simulated as they would see it in the real world. That's pretty darn cool!