Originally Posted by
BGfisher
Take it easy here as you don't want the shaft getting too hot. Apply enough heat to the point that you can grab the point with a pliers and pull the insert out.
Everything BGfisher is suggesting has worked great for me. When I remove an insert, I heat an un-installed point for 6 seconds with a propane torch and then screw it in a few turns and pull hard. The insert will come out immediately without heating up the shaft.
I cut my last set of ACC's long (as suggested), then used the tuning method of choice (broadhead in my case). After tuning vertical with the rest/nock point, I left the rest centered and trimmed the shaft 0.5 to 1.0 inch each time until horizontally tuned. The shaft should present 'weak' indications initially but each reduction in shaft length will stiffen dynamic spine.
You can polish off the tune with some very small horizontal rest adjustments.