Nathan showed me the compression graphs of the LMS vs TSAD.
From 12Hz-20Hz, the LMS5400 has about a 3dB advantage. From 20Hz-30Hz, the LMS has a 2dB advantage. But from 30Hz-50Hz, they are about equal. And actually from 50Hz-60Hz, the TSAD has 2-3dB advantage over the LMS.
Nathan said the LMS is actually more fragile than the TSAD and can bottom out easier than the TSAD.
So pros and cons.