Connect to running Windows session via SPICE and create and tag a Zimbra appointment
spicec --host 172.29.1.124 --port 5900 --disable-effects all -f --color-depth 16 &

This differed from all other traces in that it did not login but immediately opened to Zimbra web client

seconds		event
0-4		paint screen
22-24		mouse scroll unsuccessfully
40-41		scroll using scrollbar
60-80		create appointment
92		one successful mouse scroll then the rest unsuccessfully
120		scroll using scrollbar
140-144		tag
165		resize from fullscreen to window
185		close

Total bytes to tag: ca. 178KB
Total bytes: 1911KB - 272K for SPICE ping = 1639KB