Any tricks to remove drivers from a (sticky) cabinet

The show will see would be the driver cones popping off the speaker frame.  It is fairly easy to use the screw method with vise grips an a piece of wood as a fulcrum, and there is very little chance of damage if you have someone to hold the wood in place.  

This video shows a good way to remove woofers from the front:

One way to make this slightly easier is to heat the speaker just a bit with a heat gun, but, I think the approach shown in the video is really the safest.  You have to find the right screw to fit the driver hole, but, that is the only tricky part to this method.

I know you were kidding.  I did like the idea, but, I just thought it was an opportunity to again push the safest way to do this.  I saw the result of an "accident" at a dealership where the driver was being pulled from a $30,000 pair of speakers and the front panel was gouged (a speaker without a grill cloth).  The result meant ordering a new pair for the customer.