The PM-1 has a more open bore than the PC-1 requiring more back pressure, but makes it more versatile. You can get louder and a wider range of sounds with the PM-1... I like it, but then again I like all their calls.
I blew the Power Maximus last weekend and loved it. I blow an LM-1 and was looking for a call that had deeper tone and pitch. The shorter barrel on the PM made it more versatile than the SR-1. If you were going to pick one, I recommend the PM.
I have a Paralyzer Sr-1, Money Maker, and a Custom Hunter PC-1. I have had a chance to blow the poly carbonate PM-1 and the LM-1. The PM-1 in poly carbonate is a great call. So the Acrylic must be a great one also. It is easy to blow and produces great sounds. The PM-1 is a good choice.
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