There's something about an upward moving scale, played ever so slightly sharp at the thirds and other "moving notes" that gives it a little extra bite. I've heard this out of various professional musicians, over the years, as well. It refers to that "blandness " spoken about above, I think.
Among basses, the intonation problems were not where I expected them to be - bass sections, that is. Try to get 7 or 9 bass players all on the same B flat in half position, A string. You'd think it would be simplest of all. Not so. The hard passages fly well. That B flat rarely does.
I invented "nut position" for myself to cover that - move half position up to the nut and do the B flatwith the 2nd finger. Almost infallible in a section.
MWM