Needwork,
If my memory serves me right, I seem to recall a customer wanting the benefits of floats, but the option of plain skids.
The aircraft came with two sets, floated and plain, from the factory. The only thing was that it was a Clipper airframe.
I could be getting confused (which is, at the end of the day, entirely possible!!
) but the more I think about the more it sounds right!!
Hope that is of some help.