At last, someone produced the design we all needed. This is a heavily-built, very stable mounting that attaches securely and offers good positioning options. It is compatible with DW hardware so you should be able to modify it with off-the-shelf parts if needed. I wish it could extend a little deeper inside the shell but the great majority of the time the position is perfect.
One disadvantage, you may need a shock mount. I tightened it securely on a kick drum played by a drummer who kicks hard, and it transmitted so much vibration to the mic that the mic fell apart, and so did the XLR plug! There is nowhere else for the vibration to go. For lighter players I haven't noticed any problem but maybe I tightened too much with the harder player. What shock mount to use depends on the mic but I would recommend using one if possible. This is why I removed one star.
It's over-designed and over-built, in a good way, so I have total confidence it will not come off or break. Ever! The bottom rod is hard stainless steel as thick as my thumb. I think it would be hard to find the right parts to modify it for a longer reach, but the potential is there.