#1 Are you getting a strong fast flow of lead?
If you are not - clear spout with a piece of wire.
#2 Preheat the mold.
Set the mold on top of the pot for 5 minutes
Pour 3 to 5 jigs without hooks (with teflon installed) to warm mold
#3 Blast the lower part of the mold, with the hook laying in the mold, with a propane torch
1 to 2 second blast. The goal is to warm the hook & the narrow part of the mold
Good Luck