How do I remove my hud but keep my hud?

I have a custom hud not the orignal gmod half life one. All is well in single player and even some multiplayer servers. However certain multiplayer servers would load the orignal garrysmod hud On to my custom hud. So I got 2 huds shown on screen -___-.

My question is this: is there anyway to disable the gmod original hud but not disable my custom hud?
Console commands etc? lua edit of my custom hud?

If sv_cheats are set to 1 you use the console command cl_drawhud 0

I believe it works without sv_cheats 1.

I tried on a server, does not work with sv_cheats 1 apparently :confused: