handling slashes for time signatures where denominator >8 and numerator not divisible by 3
When adding slash notation to odd time signature charts where a measure has a time signature with denominator greater than 8 and a numerator not divisible by 3, then slash head notes are created with a beam but without a stem. Thus it is hard to determine the rhythm of those slashed measures (although it can be inferred from time signature). Also if beam properties are set for a time signature with beam properties that groups eighths notes or shorter individually, then when slashed, those eighth note slashes appear identical to quarter note slashes.
In example attached test, the 3/8 measure, 3/32 measure, 3/64 measure appears identically as a dotted slash (no beam and no stem). The first two 5/8's measures have beams according to time signature definition, but no stems. The third 5/8 measure has time signature definition that indiviually groups the eighth notes, which causes the slashes to appear identically to quarter slashes.
My suggestion (see attached suggested png) would be to always include a stem for all eighths or higher when filling with slashes. This removes all ambiguity as to what rhythm those slashes represent.