but with modern electronics and recording techniques. anything is possible
The cool thing about C/F 2 rows is that they seem to be one of the least desirable key systems.. unless you live in the Netherlands.. in which case nearly every one plays a C/F
Also the Brits play D/G first and a second choice is often C/F
I owned a brilliant C/F Corso ....and a Pressed Honey Pokerwork from the late 40's... excellent machine