I figure at well, the BL solvent Hornady sells should be a good trail walk lube, as well as HOPPE'S BP Lube. I saw it advertised some time ago, but not since.
The older #9 Plus and both renditions of LHV required me to use more powder to get the accuracy "Back" at 50 yards. I haven't done the lube experiment in A.Verner or my new .36 Rice Bl., but will at some point.