Best advice really would be to table select well enough to avoid most of very good regs...
Personally I have studied play of some regs using HEM filters, but versus very good regs it kind of easily get to some leveling spots after some history depending how much he multitable. I see much more benefit of HEM study versus mass multitablers as they have obviously harder time to differ from their default play.
So I try to especially make notes of plays where hero and villain has been in same pot to adjust future plays considering that history.
Not sure, if any videos would have good content for reg adjustment? Faarcyde mentioned in some of his video I watched that he might do video for that in future, if my memory works somewhat ok
May I ask what sample size you have for beating 30$s?