Similarly to how Half-Life on steam works, the actual limit for fps should be 99.5 for steampipe (which is every current steam version of GoldSrc games, this is also the version we play on.) fps_max should only be 100 on a client similar to NGHL, like what they use for Half-Life. I'm not even completely certain why this is, but it has to do with a certain update valve made to SteamPipe.

tldr; change fps_max to 99.5, because it's more accurate to fps_max 100 on pre-SteamPipe clients.

Edit: PJC gave a response here: https://www.speedrun.com/hl1/thread/mog36/1#nqmld

As he also mentioned, saveglitching should be allowed. If not in the normal category, then in another category. The reasoning for it being banned is obsolete.