Jesel roller rocker

Noticed some of these rockers come with an oil hole drilled from the top side where the oil puddles , into the underside which oils onto the valve retainer , should i carry this modification out? , or just rely on the oil 'overflowing' onto the valve/roller tip?
Should i fill this hollow in the rocker before i fire up , although the motor has already been broken in before i tore it down , i read jessel reccommend removeing the restrictor on a fresh build , will this apply in my case?

Rather than bring my previous post back up , am i right in thinking the lash cold is .005 thou less? , ie , hot .022 cold .017.

TIA.

anyone?

I add .005.. things expand and move around ..Warm up to 180 and Re-tork and re-lash.. Leave rockers as they are, they will work fine...I always squirt some oil on the valve train before inital fire-up..

Thanks.

Got iron block/alu heads , so after reading previous thread i see how the lash setting is '005 tighter , was confused as i always used settings for ci block/heads.

Aluminum heads, according to Crane, should have the lash set .006 tighter when cold, reset after warming up the motor. some motors cahnge, some don't

"should have the lash set .006 tighter when cold, reset after warming up the motor. "

Cold setting for start up .005 tighter.