Very similar for my Imperial drawings: PSLTSCALE = 1 LTSCALE = .4
For metric drawings: PSLTSCALE = 1 LTSCALE = 10 (ie 25x the imperial setting)
I also use only acad.lin I copy my acad.lin overtop the acadiso.lin so I don't accidentally change the linetypes when I start in metric or imperial drawings. I want my drawing practises to be the same regardless of the units used otherwise I would have to remember which settings to use for what unit drawing I began something in. I eliminate just one more source of irritation that doesn't need to be there in the first place.
I am ALWAYS using multiple scales on a drawing sheet therefore to me ONLY USING PSLTSCALE=1 makes sense to me. Otherwise you'd have to put up with unequal dash lengths for the same line type - again I just eliminate one more source of irritation. I do a fair bit of editing/drafting through the viewports but when in model space, all I do is change the LTSCALE to match the appropriateness of the plan/section/detail/etc. I've done this for so many years now I can't imagine doing any different.
"Why don't other people draw/think like I do?" :-)