My VPC1 has also some weird weighting / velocity output issues (maybe you are familiar with this thread at the modartt forum: https://forum.modartt.com/viewtopic.php?id=6886)
For example the tenor region is louder than the neighboring areas.
The QC is fucked up at Kawai. Just look in the CA79/99 thread at pw…
Beside from the QC issues: At first the VPC1 felt great, but after extensive playing for five days I realize it just isn't for me. I Like the Roland FP-30 better. When playing the Roland with Pianoteq I feel almost I have a real, breathing instrument under my fingers. My playing just translates very good and the velocity response is so accurate. It's more crisp and you get more feedback from the action. The connection between the action and the sound is great. That was even more case for the NU1X too.
When playing the VPC1 I have the feeling of pushing buttons that look like and are aligned like piano keys, but somehow the connection is not there, there is no proper feedback. It is not a latency issue - it's the same for both keyboards.
Also the keytops (which feel good) are slippery as fuck! I never played a piano where I had such grip problems. The pedal unit is a joke. Even without the defect the other two pedals feel awful.
And: Pianoteq sounds great with the FP-30 and NU1X - but somehow not as good with the VPC1. It's too bright and metallic and adjusting the velocity curve I can't get it feel and sound natural, it just doesn't sound as good as it could. I think the wide range of different opinions in Pianoteq may be caused by the fact that Pianoteq may differ in sound and response from keyboard to keyboard like no other (sample based) VST.
So now I will either:
- stay with the FP-30
- try the RD 2000 / some other Roland with PHA-50 (why is the Kiyola KF-10 so expensive?)
- or go completely insane and try the Lachnit
Btw. my main concern regarding the Lachnit is that it is a small company (without proper service network?) and it is possible that it doesn't exist in a year or two… what to do if there are problems?