I realize that the hammer hardness parameter that was on the CP5 and present on the CP1 have been omitted from the CP4. I wish Yamaha kept that parameter because it really allowed for more customization of both the acoustic pianos and vintage electric pianos. I do realize that the CP4 DID include the mic modeling feature from the CP1 that the CP5 didn't have. However, are there any presets throughout the 3 different acoustic pianos that simulate different hammer hardnesses. Also what do the StFl+ and - acoustic piano presets mean?

PS, hoping for an OS update that will include a DSP modeled string resonance!