lifter galley crossover tube

YR has posted several times before
do a search
Crank drilling (cross drilling) is different than old school too
they sorta go together
I've had customers feed the drivers oil galley before but not actually drilled it that way myself
I'm going to ask around
Ive done the regular crossover for customers- not sold on it
I've front fed many sbc's but know of no easy way to feed the front of sbm (anyone?)