I know this topic has come up several times in the past. Thomas Dayspring posted this yesterday on Twitter:
"Do not confuse the two: sdLDL-C is cholesterol within LDLs sized 15.0-20.0 nm, but small LDL-P quantifies LDLs with diameter of 18-20.5 nm"
Also, Peter Attia has a new post on the etiology of heart disease on his website, for those of you who haven't seen it yet:
http://eatingacademy.com/cholesterol-2/ ... prevention