I have been using guitar synths since the 90's. My first was a Casio PG380 guitar. Later on I purchased the Fender Strat Roland ready guitar which I still have and use today. I also have a Roland GK-3 pickup mounted on a acoustic guitar. I previously owned the Roland GR-20 but I sold it on Ebay and upgraded to the Roland GR-55.

I have found there is always going to be some latency with pitch to midi conversion. This has been improved over the years with faster electronics. It is very important to have your midi pickup adjusted correctly for your style of playing. Also like you have found out different synth patches track faster than others. I mostly use strings but I do like the piano.

To sum it up, you have to play a guitar synth much more accurate than a guitar because of false notes triggering. The guitar setup adjustments are critical. Certain patches respond faster and track better than others. In general Bass note frequency's are slower to convert than higher frequency's. This is just the nature of the beast.

Merry Christmas
Brian

BIAB 2025 Ultrapack- Studio One Pro 7 Windows 11, Mac Mini M4 with Logic Pro 11, Melodyne Studio