No Sparge Qns

[weiht]

Hi there, Im planning a RIS no sparge brew in 2 weeks time after a porter than I'm brewing this weekend, so I can pitch the beer onto of the yeast cake.

My qns is, do i have to add more dark grains as well for the no sparge as I wld for all the other base and specialty malts? Wouldnt want to end up with a beer that has too much burnt flavour, or too little for that matter.

I was told that I should also scale up the roast malts as it should be across the board for all malts.

TIA