I have both a 12" LB and a 2" Orion deluxe and can confirm that not only is the orion a very nice barlow but that it does indeed come to focus in the LB. I need to have it sitting a little out of the focuser but not much, maybe 1/2 an inch.
It seems that the Orion Deluxes are not a regular stock item in most stores in Australia though
