So far, this is all I've found.
Thread
GraalBible Entry
From what I've read, it's only useful on iPhone servers, but I gave it a shot anyway.
Tried setting both syncdistancex and syncdistancey to 50, then 500, on both true and false settings for syncbydistanceinside.
Then also tried screenwidth+500 and screenheight+500 on both settings for syncbydistanceinside as well.
No luck with it yet.
