Success and failure - new to this.
success: put a TM mini driver in a Tensei blue five wood shaft. Thing is a rocket launcher for me. Use it off the tee and fairway. Has replaced my driver and three wood.
failure:
in an attempt to replicate this magic, tried to put a titleist driver adapter on a 3 wood shaft using only a heat gun and pliers (amateur hour). Ruined 3 shafts in the process.
expensive mistake.