it keeps floating around a certain point, but it never stays. Here's an example:
using LA C7 Grand Piano. When loaded (without THINNING), the RAM is at 4,6 GB (with 800 MB ca. of Windows 10, other 0,5 GB for Cubase Elements 9 and 0,5 GB to open Omnisphere - so the patch is around 2,8 GB in size). Now I play all the stuff that I want, within the entire keyboard, with pedal (a lot of voices at the same time) and it begins to grow up to 5,3 GB - then, it starts floating around that number, as shown in these screens.
It does this with Acoustic Piano (large patch); with other patches (I tested Rhodes Classic and Clavinet C) it does so but the difference is unnoticeable (with Clavinet C the difference is under 0,1 GB, with Rhodes Classic around 1,0 GB or a few MB).
Then: when I play a lot of voices with pedal, when I release the pedale I hear a sort of dropout. You too?
And, last but not least, the Vibrato on Rhodes Classic makes noise: here a sample where you can hear (more on bass than high).
Ley me know, thanks.