starting the preparations...
i cut off the feets (can't eat them and will burn anyway)
washed it in beer, rinse and dry.
split the bottom of the mouth and split the spine so it opens up flat.
sprinkled a bit of salt in the cavity and back in the fridge to dry. roasting it thursday night.
further video research, i think i will just do a gentle prick of the skin on the second half of the cook skin side up.