I'd love to join! And I'd also like to render the part myself.
UTAU name: Arekkusu Okami
UTAU Creator: McCloud
Song: Unbalance
Voicebank Type: CV
UTAU art:
Wait, did you use moresampler to oto it? Because if you did it then that might be the reason. Although I haven't tried using moresampler for otoing I think it's safe to assume that it won't be perfect, especially because it's so new.
Are you sure it's vibrato? It might just be that the vb isn't configured correctly in order to loop samples, so long notes end up sounding weird. If that's the case then try using the e flag.
Definitely quality! I just don't see what's the point of say, recording 15 VCV pitches if the end result will sound like crap. I'd much rather just use a CV bank recorded on a HQ mic and have good oto instead.