[TenTec] Palstar tuner

[Arthur Trampler]

Isn't one of the key distinctions of the Ten Tec 238/B/C that these are switched L networks, rather than T-networks, as I believe the Palstar is?
 
Some years back QST reviewed several external auto-tuners and with respect to efficiency, the Ten Tec 253 came out far ahead of most competitors, as did (surprising me) an MFJ tuner.  They both handily were measured as being far more efficient than the Palstar especially on the lower bands matching low-Z loads.
 
There is a common factor between the MFJ and the TT-253 (and 238), and that is that it is also an L network.  Most Palstars are T-matches, right?
 
So forgetting the questions/comments about baluns, and whether the lowest SWR is also the best match, and whether there may be multiple low-SWR tuning points with a T-match...
 
Is an L-Match inherently less lossy than a T-match under most circumstances (ceteris parabis)?
 
Thanks,
Art