I don't have a da-40 but I have never had issues with 90m tapes in any full sized deck I have owned
Sony pcm-d500, d700, 7040, dtc-a8
Fostex d-5
Panasonic SV-3800/4100
I knew someone who ran 120m tapes in their DA-45hr to run 24bit and didn't run into any issues either