Hi, I've calibrated with Colour space many Sony Laser projectors in the past years without any problem.
This year I've calibrated 10 Sony VPL-XW7000ES units and, in all cases, I had very bad results with the calibration luts.

In the past days I've compared the drifts of two profiles ...



Both projectors were profiled with WP calibration done on the projector before the profiling.
Like you can see the WP drifts reading for Sony is always not corresponding to the WP precalibrate.

Tonight I've done various profiling tests on this Sony Xw7000 ...
I've increased the extra delay time to 1.5.
No way to obtain a clean profile and a good calibration lut.
I've also used stabilization ... but nothing was solved.
I include here all my profiles.

I've tried also to create calibration luts without including drifts in the calculation ... but the results are still bad.
Mainly I'm talking about the RGB resulting track.

I'm not able to understand where is the problem.
Hope someone can help.
Thank you all

I have had similar issues with a Sony Projector. Have a look here: https://www.avsforum.com/threads/sony-vpl-gtz380.3164159/post-61974556
It appears from your drift that when your display is cold, there is a chromaticity drift. I have solved by working on stabilization patterns (medium intensity) and warm up.