that's one of the other ways i've done it. although it doesn't work as well as everyone would like.
2 problems with a float mod
1.) Its viewable via other players online even if they don't have the modified file
2.) duh, you can't jump lol
The other way i've done it, was i discovered the link to attributes in the model file itself (every model file has it somewhere) and i deleted the hitbox for the feet via hex edit. Once that was done, it screwed my game up a bit, but i never recieved fall damage, that's also how i did Semi-god mode via mod, i deleted the model completely, and no players existed on the games
lol just delete all char _M_ files and you fall through the ground