UE5 Metasound Karplus Strong

This is easy to set up but because I can’t access the “tap out” part of the delay it glides to the notes. While that’s cool and creates some nice “Rings” type sound I’d like to also be able to avoid this. Using Wavewriter (like delwrite) seems to defeat the purpose of procedural synthesis and the Biquad filter doesn’t seem to offer tuning inputs. Any thoughts?