I had a pair for about 2 years, and made many great tapes. I mostly sold them to have switchable caps, and just to try something new.
As others have mentioned, the equipment following the mics can make a big difference. I really didn't think the modSBM-1 worked well at all. I used the modSBM1 with both the Beyer mv100 and a pair of line transformers. the V3, however, worked great with the mics, and cleaned things up a good deal. I didn't find the low end "sloppy" or "loose", not at all, especially with the V3. if anything about the low end, I sometimes wish that the frequency response didn't slope as much down there. (i.e. at time, I wanted more bass from the mics).
if you'd like to hear good representation of what these mics can do, over at archive.org, check out the Club d'Elf section, and look through some 2004 or early 2005 shows. you'll find plenty of on-stage tapes that I recorded, and I think you'd be hard pressed to call the low end "sloppy" on any of those recordings (12/9/04 or 2/17/05 are both great shows)