Here is a video that Bandersen shot... near the end of the video is a P-7 jug.
Although it is out of focus, you can clearly se the undesirable effect produced by the long persistance yellow of P-7 phosphor. A blue filter that does not pass yellow light could help, but IMHO, will not look vvery good.
https://m.youtube.com/watch?v=crBqt606qOg
jr