I usually do set MAL back to 0, not so much to mess with anyone, but as to keep the menus clean and uncluttered. The only Parameter opened by MAL that I typically change is IKI. It is just used to clean a small bit of chatter on linear door operators when they are in nudging. The rest of the parameters get confusing, even for TKE personnel, so I usually set it back to default 0 when I am done.