I received my N219C 3000K M361 drop-in this afternoon. It is installed in my Malkoff MD2 host with crenelated bezel and tricap. I initially installed it with a hi/lo ring but experienced some unusual behavior. When I first loosened the head it cycled through the three low outputs beautifully, but then would remain at I believe the highest of the three low outputs. I would have to tighten the head, which then gave me the highest of the three high outputs (instead of the lowest), and then loosen the head to get the three low outputs again. Then the cycle would repeat itself.
As a result, I removed the hi/lo ring and installed the stock ring. The output is beautiful, and the three levels will work just fine. My M361N is set up in an MD2 with a hi/lo ring and has worked perfectly since I received it.
nimdabew, thank you again for coordinating and doing all the footwork on this. It is much appreciated.