Hi, Hilmar!
>>
Perhaps I should even test float.
<<
Don't do that - that's a backward compatible data type only.
BTW: I tried to define such an field during tests related to your question - the float field never saved at the end of MODI STRU (without any error messages).
IMO the best way is to deal with numeric data type and use a 2 step import using the replace command or related features!
SeBaFlu