I always use 1.0 and define my linetypes what I want them drawn at when printed.
Autodesk
*HIDDEN,Hidden __ __ __ __ __ __ __ __ __ __ __ __ __ __
A,.25,-.125
*HIDDEN2,Hidden (.5x) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
A,.125,-.0625
*HIDDENX2,Hidden (2x) ____ ____ ____ ____ ____ ____ ____
A,.5,-.25
*MyHiddenIsBetter x(0.5),MyHiddenIsBetter__ __ __ __ __ __ __ __ __ __ __ __ __ __
A,.0.0625,-0.03125
*MyHiddenIsBetter,MyHiddenIsBetter__ __ __ __ __ __ __ __ __ __ __ __ __ __
A,.125,-.0625
*MyHiddenIsBetter x(2.0),MyHiddenIsBetter__ __ __ __ __ __ __ __ __ __ __ __ __ __
A,.25,-.125
Speaking of which here it helps with things like this nice little thing for linetypes with letters(they added new 'U' parameter a couple years back)
This works with Romans and some other fonts but if using another font you have to figure out the height of letters
Red is text height so if using 1/8" change red to 0.09375(3/32") to 0.125
Green is text height/ 2
Blue is the number of letters* text height(only add half for lower case)
*Electrical Line,Electrical Line ----E----E----
A,1.25,
-0.09375,["E",(Hgce)Romans(LineTypes),s=
0.09375,x=
-0.046875,y=
-0.046875,u=0],
-0.09375*1-Phase Primary Overhead,1 Phase Overhead Primary ----1oOP----1oOP----
A,1.25
,-0.09375,["1%%COP",(Hgce)Romans(LineTypes),s=
0.09375,x=
-0.046875,y=
-0.046875,u=0],
-0.375I also will define one (x2) and (x0.5) but will add one like this so for the tight spaces the Letters will show up and be the same height
Notice the last number adds only half the value of text height since it uses a lower case.
*(Existing)Electrical Line x(0.1),Existing Electrical Line (.1x) -Ex-Ex-
A,0.125,
-0.09375,["Ex",(Hgce)Romans(LineTypes),s=
0.09375,x=
-0.046875,y=
-0.046875,u=0],-0.15625