Sugden Masterclass LA4 vs LTA MicroZOTL

I have been looking for a preamp to pair with a Leben CS600.

Was looking primarily at tube based units in the 3-4 K price range.  Also need a low profile.  A friend loaned me his Sugden SS preamp which sounds suprisingly good.   The other candidate is the LTA MicroZOTL which I have not had the opportunity to hear.  I know this is a reach but wonder if anyone has heard these two preamps?

If so, can you compare them?