duplets

[Eric Flesher]

Greetings,

Is it possible to suppress/alter the tuplet number in the case of the  
duplet shown below? (m. 91, bass staff) According to Stone, this  
should be engraved as a duplet with the numeral "2" in the bracket.  
This could of course be represented instead by dotted eighths, but  
these then get rather cumbersome given the quadruplet that follows on  
the next beat.

Replacing the duplet's "4" with a fraction ("4:3") is possible, but  
rather counterintuitive to read.

EF