[Dr G]

I've been getting poor low register response out of my Winslow and my mpc.

How does your horn respond with other ligatures on that mouthpiece?

The "blame" may not fall to the ligature.

And, if another ligature works better, why struggle with the Winslow?

 

[Dr G]

I, too, tend to be in the camp that says tighten the lig only enough to keep the reed on the mouthpiece. It's a ligature, not a vise.