Genuinely take your time and don’t rush to the agreement. Settle on the certain points, take them out, then review what is left. Don’t feel rushed to confirm back what the opposition suggest. That I think is where these disagreements mostly steem from. My personal approach is to ask them if they are happy with, rather than force a score suggestion on them. If I’m not sure, I say so and just suggest, shall we measure? and lightly add something like what do you think when the measure is getting reach for, it’s more fun and a lighter approach but that’s just me.