I am putting something together for my lefty that has just getting back into the game serious after a year layout.  hes med revs 15-16 mph speed

heavy - goliath drilled stacked
med- heavy - either a origonal danger zone au79 or show time sanded
med - he has a demo he refused to give up
med-light power groove reactive pin over bridge cg kicked slight right
light ebonite ice drilled pin over middle and cg in center of grip. i know the last one would work cause i have one drilled that same way