NateInMaine wrote:
Manfrotto makes a heavy-duty monopod that will easily handle any lens.
You absolutely can use a monopod with any lens. After nearly 40 years shooting sports professionally using big lenses on a monopod, I can tell you that, yes, you can use a monopod with your Tamron 150-600.
I agree with your post. Manfrotto monopod is excellent and yes, for best results a monopod (or tri-pod) should be used. You might be able to squeeze off a few good hand-held shots with image stabilization engaged. But after a while, that baby gets heavy and camera shake intrudes.