As it is right now, the small-drones tag has some really serious problems, which we need to solve before public beta.
The overarching problem is that it doesn't really represent anything.
In the tag wiki the tag is defined as relating to drones that are lighter than 250 grams. However, neither does the tag name itself represent this, nor do most of the questions tagged with it necessarily relate to sub-250 drones. Some of them actually specifically relate to non-sub250 drones.
Finally, for a large percentage of questions that have this tag it's the only one, and these questions themselves tend to be rather low-quality. This suggests to me that the tag is (or was) being used to sidetrack the "you must tag your question" requirement as a kind of catch-all category. (probably because it was the suggested tag in the tag box in the first few days of this site).
There are several ways I see that we can go about this.
The first is to make the tag match its description: Sub-250 grams, that is. This requires removing the tag from all questions that don't match it and likely renaming it as well, as the current name alone does not in any way suggest this definition. What we do with the tag itself after that if we go this route (make it a synonym of the new name, remove it entirely, repurpose it, or something else) is also something we'll have to decide.
The second is to broaden the definition of the tag somewhat to make it fit both more of the existing questions and its own name. This begs the question, however, of whether we need such a broad category at all, since almost all questions will be about such drones. Also, the category itself has to be defined somehow.
Third, we can turn this into a whole range of size-based tags. Besides singling out the sub-250g category, we can, for example, define a nano category (less than 50g maybe), a mid-size range that would cover 250g to a couple kilos or something, and one or two heavier categories, say 3 to 15kg and 15+. If we go this way, we'll have to decide on the number of these categories, their boundaries, the naming system for the corresponding tags, etc. To conclude, we'll have to decide which of these new size ranges the original tag name should correspond to if we decide to keep it.
Finally, there's the option of getting rid of the tag entirely and adopting a policy of not tagging based on size.
Probably there are other options I did not consider; feel free to suggest those as well.
Also, I'd like to point out that regardless of what we do with the tag itself, we'll have to retag most of the questions using it, and especially those that have it as the only tag.