if i head well, if the cross sectional area of the groove = the cross sectional area of the o-ring, i think that that would not seal very well. Any help from others pls???
My explaination to this is that there will not be enough force on the oring to deforme because it will find its exact position (and even if the block is tightened the mostly possible, most of the force of the top will be exerted on the base itself). at least, the block which i did with hara, we followed the rules which i posted and there remained a space between the top and the base of the block, but no leak
