So I pulled the trigger and picked up my YC61 a couple of days ago. Still finding my way around, but it seems like a lovely board so far.
The keyboard action is really good IMHO. Much lighter and 'smoother' than the Nords I have tried. ..And to finally clear up the key size discussion -
Yes, the keys are Yamaha 'synth size' .. so the octave is 160mm (or 159mm if you measure key edge to key edge).
The keys are also shorter than my P105 piano keys .... the white keys are 138mm long (as opposed to 147mm on the P105) and the black keys are 90mm as against 95mm
The semi weighting 'feel' is very much like the better quality Yamaha synth keys --- so, more like the Motif/Montage 61 note FSX keyboards, rather than the cheaper MOX/MOXF6 keys
It seems a bit strange playing piano on a waterfall keyboard, but a combination of decent weighting and selectable velocity curves make it very playable for pianos and EPs.
Do the keys feel like an original Hammond waterfall? ... Well, it's been a while, but I don't recall even thinking of being able to play piano parts on a C3, so no, not really very much like a Hammond.
But it dos feel like a 'proper' waterfall - which is nice!
As others have said, the default Leslie speeds are not right, and need quite a bit of tweaking. I'm still trying to work out what the scales for the rotor acceleration and deceleration mean? ... It goes from 0.21 to 2.00 - with 0.21 being the longest time?
It's certainly not in seconds --- not sure quite what it represents? (I've probably missed something obvious)
For anyone who is interested in what the 'raw' vibrato and chorus sound like, I've posted 3 short .wav files to illustrate what a single note - a major third and a triad sound like, pressing V1,V2,V3, C1,C2,and C3 in turn...
www.jp137.com/las/Single.note.off.V1.V2.V3.C1.C2.C3.off..WAV
www.jp137.com/las/Triad.off.V1.V2.V3.C1.C2.C3.off..WAV
www.jp137.com/las/Major.third.off.V1.V2.V3.C1.C2.C3.off..WAV
Each file is about 5MB.
So - still lots to learn, but so far I'm impressed. And it looks to be nicely built throughout ... (and so it should be at the current price )