DES -m 1500 supported in hashcat?
Maybe I am confused. Is -m 1500 supported in Hashcat?

It's not shown in the --help output, but it appears to work. I say appears, because there is a bug if you try to use --remove - it corrupts the remaining hashes, and renders them uncrackable.
No, some code is there, but its broken,
Thanks! I won't report the bug then.