With the developement of eficient braking,the stop' case is improved to allow guys to go to V!/VR and stop on runway(the reject actioned by V1 as per thr 'rules'..Ergo the 'go' case is the worst(longest distance)case..
And has been pointed out that the 'reduced V1'on a long runway simply gives you an 'early' stop,or a more leisurely Go' case to the distant screen height.
With the use of 'clearway'these days very few Takeoffs are Balanced...
cheers
efficient-that is