anyone have any advice or tips on how to change flag poles on 10mm figures

any help appreciated

First thoughts are:

- A lot depends upon how the figure is holding the flag pole. If it's close to the chest you have a lot more leeway than if it held off in space as it were. The reason being that when drilling the hole to accept a new flagpole, you have to be a lot more accurate on poles away from the body so as not to ruin the hands by drilling off centre.
- Decide upon the new flagpole rod diameter.
- Drill a hole about 0.10mm larger than the new flagpole. This give you a bit of room to fit the flagpole and then add the superglue.
- Make sure you have a good pin vice and drill bit as this makes drilling the new hole a heck of a lot easier.
- If possible mark a hole start with a pin or something to help locate the drill bit to prevent it sliding off.
- Be patient!!!

Hope this helps?

I think Steve's just about covered that. 
Same technique would apply to replacing a spear/javelin.....Though (...and I'm guessing) I think most of those would be at least a little away from the main body of the model.
Some 'chuckers'/throwers might prove a tad difficult.
Cheers - Phil.

My only addition to the above is that if you do, by chance, ruin the gripping hand(s) they can be repaired with Greenstuff and some care.

.30 gauge/30lb fishing line works really well by all accounts!

thanks for all the info