Ended up with access to MV thanks to a bundle.
The projectile scripting system that I've been making for my latest personal project in VX Ace was successful in creating objects, but not in drawing them to the screen. In a fit of potential stupidity, I'm about to start reworking the whole project into an MV one instead. Unfortunately the 6 or 7 sprites I have worked up won't match the standard creation system, but hopefully it won't be any harder to modify than VX Ace's was.
Also, I am fairly familiar with javascript, so I hope to understand a greater proportion of the code going in.
Of course, after about 50 hours of work, I was getting pretty familiar with VX Ace's ruby, too

Does anyone who has used both MV and VX Ace have any helpful comments about trying to move from one to another?