Gap between stem and cross noteheads

[Vaylor Trucks]

When I use a staff size larger than 20, I get a gap between the stem and the cross notehead, like for the ride cymbal in a drum score. Any way to correct this?

\version "2.19.82"

#(set-global-staff-size 23)

up = \drummode { \stemUp cymr4 }

\score { << \new DrumStaff << \up >> >> }