Very recommendable. From my experience with mods, a beta release can have a huge impact on the opinion of a mod, simply because a lot people forget that a beta mostly is just that and confuse it with the completed thing, or a professional expansion, for that matter. Of course I´m eager to play your mod, but I rather have a bugfree (or at least as close to that as possible for a free mod) beta than one that´s hardly working at all with only a few units for custom battles.