Hello Neil
Do you remember those discussions in the old forum? There we had complaints that Nuendo would not deliver an unlimited number of tracks, as claimed, but had its limits at 500 or 999 tracks, always in addition to a few 100 MIDI tracks, a halfwitted number of Plugins and bags of automation.
Projects of 150 + tracks in high resolution and surround I would rather consider a medium size production for the work you do.
Looking at those huge amounts of data being shoveled in/out and being erased/recorded in the run of such a job, if the studio doesn’t buy a new SSD with every project it means kind of asking for “it”.
M2c…
Big K