I used POL for log time as well, In POL.cfg you will find,
UseNewStaticsFile=0
If that is set to UseNewStaticsFile=1 Then you are generating new Statics0.pol and staidx0.pol files on the Initial Startup of your Shard..
If you change, or add statics on the statics0.mul, you will need to delete the Statics0.pol and staidx0.pol files in your POL root directory..
Then when you start up the shard next, It will generate a new set, giving you a Problem solved
**edit
Oh, and POL does not suck, nor does Sphere rock..
RunUO is the only EMU worth using
(opinions vary)