Or better yet, if enough folks provide model data and some accurate feedback on what the models fly like with comparisons to some well known samples as benchmarks then I would suggest you remove the name categories and instead include notes on the type of performance that can be expected for the ranges of cubic loadings. My 89 inch old timer is sure not a parkflyer but it floats as nicely as a Gentle Lady glider. So the numbers suggesting a style of flying may be more accurate than the types of models.
Yes Bruce, that's it. You guys are welcome with suggestions.
So far one may say that cubic loadings up to 8 are likely to give reasonable low take-off and landing speeds regardless of actual plane's size, provided other conditions are met.
At higher cubic loadings one should expect increased landing and take-off speeds, assuming no special lift devices are used, such as flaps.