Getting nib points out of old micro-flites?

[Orion]

I picked up some micro-flite fiberglass arrows that have nib points on them.  I believe that's what they're called.  Just little cones protruding from the fiberglass shafts.  They are/were used for target shooting.  Anyway, my plan was to replace them with inserts and use glue on broadheads for hunting.  Problem is, I can't get the buggers out.  When I shot micro-flites in the 60s, we used hot melt glue to affix the inserts.  I've tried heating the point with an alcohol lamp, and I've tried immercing the end of the arrow in boliing water to loosen the glue.  No go.  Obviously, whoever put these on didn't use hot-melt glue.  Anyone have any recipies for softening other kinds of glue without ruining the shafts.  Can't cut them off.  I need all the length that's there.

[Roadkill]

I took some out using heat.  Next try putting them in the freezer for a few days, then rap the point stoutly to break the adhesion. Steel will shrink but fiberglass won't-at least as much.  i use this a lot when I bedded rifle sstocks.

[Orion]

I just tried one or two with heat, and they didn't come out.  Suppose I should go through all of them though.  Some just might break loose.  I was thinking about trying cold, next.  Haven't done that before, but it just might work.  I'll give it a try.  Thanks.

[reddogge]

If all else fails try to cut the end off, drill a hole and use an EZ OUT screw extractor on them.

[Doc Nock]

I have a half dozen of them blond ones "Micro 6" I think! Someone at the B'more shoot walked up to me and politely asked why I was shooting them...

After a bit of conversation, he shared that they were pretty "collectable" and were the target versions and fetched up around $120/doz on some sites he visited!

I put them away!