Snapshot Maximum Recommened Size

[rbisco]

I use snapshots on live gigs because I've found it to be the quickest way to change patches (especially when I need to change in the middle of a song). My question is how large (in terms of CPU memory) can I make a snapshot without running into problems? On my largest snapshot I have about 23% of memory remaining when I look at the Setup screen. How close to zero can I go? I have the unused channels available.

Running Receptor 2+ PRO w/ 4G memory.

Ray