engine shaft coupling removal

By memory I believe the coupling of the saildrive to the engine is a flanged tooth affair with a rubber fitting between to soften the action and reduce vibration. Is that correct? So the collar you refer to is the one attached to the bottom of the crankshaft that fits its matching part on the top of the shaft of the sail drive with the rubber fitting in between? Am I in the right place? If correct, I think this had a locking square section keyway between the collar and the shaft. I don't remember this being difficult to remove, but if the teeth of my puller did not fit into it, I would have ground down those teeth until they did. More challenging was getting the bottom crankcase plate off. I glued two pieces of 3/4 ply together and drilled holes in it to match the bolt holes that hold the sail drive onto the engine. Then I made some long threaded studs to hold that down from the top, then a double nutted affair through the middle allowing me to screw down against the center of the draft shaft which applied uplift to the plate. Something like that...can't quite remember, but I bet Bill can as he has done it dozens of times, where I only did it twice.