I like the new Hamburg piano. Listening with my HD650s it has a tad more warmth then the CFX. But live I heard it as thinner sounding through my RCF TT-08A speakers. So I used the CFX exclusively on the one recent Jazz Trio gig playing behind a vocalist..
The velocity adjustments are helpful but I still feel the action being not as substantial as the CP4 and P515. Particularity live. Solo at home I'm ok with it and I keep getting more used to it. I most likely will keep the CP88 but I do have about another 30 days left on the return. The CFX sound is night and day better for me over the CP4.
However I'm still pining to try the Nord Grand-- I came here to be talked out of it. Please help in dissuading me.
Ha,ha. If you like Yamaha, you like Yamaha. And I do. The CF and CFX patches on Yamahas are fantastic, and very very hard to beat. The Shigeru might be good for playing nocturnes, but on a jazz gig you want the CF or CFX. Even Roland can't compete on sound, though Roland actions are the best ones under 2000 euros IMO. I've never played a Nord, but they are so expensive! My P-255 GH action is a bit light too, but I think it's OK for jazz. Anyway I have gotten used to it, and I don't regret keeping my Yamaha, though like you, I considered sending it back because of the light action.