Ah, that makes sense, then, about not following the DS for pray or cry. I was just checking to see if you changed Recall when you said that you didn't!
There already is a posted patch for restoring the original spell learning rates. In fact, I was thinking of applying it to my version, though I can't be 100% sure it is compatible with your patch, although I'm guessing it is (?). But, yes, you could incorporate it potentially, at least as an option. By the way, where can I get version 2.02?!
EDIT: I checked some of the monsters with FF4kster, and I would say the differences are significant. For example, CPU has 30,000 HP in the original (per guides.gamercorner.net/ffiv), but only 20,000 in the U.S. version! The monsters also drop less GP/Gil. It looks like it would be easy, if a tad tedious, to make a patch to restore them to the harder originals, so maybe I'll do that....
Re: Final Fantasy II
I'm not sure which experience bug you mean. I know a stat doesn't level up right when a spell is cast against the whole party. A serious bug is how Guy is targeted far too often. Dispel also didn't work, just like in the original. Ripper doesn't work right. Sap doesn't work on enemies over 256 MP. At level 8 Aura doesn't grant its bonus, same with Barrier. I'm forgetting a few minor ones. The title screen has been fixed, thankfully. The targeting and Ultima bugs are the most serious.
I doubt this is a bug, but the light armor could benefit from a different icon, like the cuirass one from Final Fantasy Restored. The diamond armor and cuirass have the same name! I made a hack to do that but never published it. Some item names are bizarre, especially Valium. There are about a half dozen typos, too.