Modified hfs files and console commands/bindings can work together. Followup on the binding guide.
I never touched rev gravity. It should turn off IIRC, but unless you are doing related stuff with it, it's pretty much a "fun" hack IMO.
Some console commands will reset after passing through a stage in dungeon runs, hence you need to input the command again, like 999 secondary weapons command. Where else some will remain throughout until you close the client, like mob delay commands.