Umm, Brian have you tried DL in mixed grip? This usually helps people get their DL significantly higher.
I'm gonna think that DL using this " clean " version which is more Oly will like the Oly HBBS limit what you can lift.
I can understand the difference ( and maybe see it if I think starts low or starts high ) but I do not know if I can differentiate my DL form into a clean DL and regular DL. My friend said I DL more like an Oly lifter when at the CF Games ( a fellow CF affiliate coach/owner/operator that has done more of the Oly certs and sems than me [none] ).