I am pretty much convinced that fin cutting will be a part of my 511B ringing control plan. Sam P. (below) also did this and reported good results. He used a sawzall and needed to make several cuts per fin to remove enough material. How did you cut them and what tool(s) did you use? Any hind-site observations greatly appreciated.

Good idea using the radial tire matrerial (to damp radial horns!). In as much as I do play some blues and rock on my system, perhaps I should use material from off-road radials.

Regards,

AstroSonic