If I have a spawn point with forced spawn (sp) 5000 that contains a single mob with chance to spawn (object_int1) 5000, what does this do?

I reason that it makes a spawn point that spawns 50% of the time, but always spawns the first time. Is that right?

spawn point spawn chance is 1/x, so if you set it to 5000 it is 1/5000.

mob spawn chance is multiple mobs in the spawn point so if 1 is set to 5000 and the other 10000 each will have a 50% chance to spawn WHEN the spawn point chooses.

iirc force spawn does set to initially spawned and always spawned (title?) will instantly respawn upon mob death.

hm, so if only one mob is in the point, chance to spawn is meaningless?

the chance to spawn in the mob yes.

the chance to spawn in the spawn point is not....change the default 8 to 2 for a 50% chance of spawning a mob, to 10 for 10% chance, to 100 for 1% chance, etc.