I own and love playing my CP88 but the sub section is very limited. I have the latest update and the assortment is too basic plus the sounds are not as rich and warm as the CP4. I own and still play a CP4 and CP300 and wish you would take some of the pad, organ and string performances from those stage pianos and expand these into the CP88. I've been watching videos of the new YC61 and it looks like you folks did more with the synth engine on that keyboard than you did with the CP88. This made me disappointed with my CP88. My hope was to retire my CP4 and use the CP88 exclusively because the UI is so much better on the CP88. Any chance of updating the sub section on the CP88? Thank you.