Ya I usually do something like 5-8%. Yesterdays build on Front doubles went 95-155-205-255-290-315-340. I usually “plan” closer to 5 by the end but that conservative amount let’s me shift a little higher if I’m feeling better that day (initial plan was 335 but things felt good so went 340 instead).
It kind of depends on what you are building up for, intentions, and why, but for a single to be blunt if you think you can’t make the lift because jumps of that size are going to fatigue you then likely your just not strong enough for the lift or your capacity needs some work.
It would be different building up to say testing a 10rm. Then you might scale the reps down as you build to avoid fatigue, the weights still might be the same (but testing higher reps also means the further down percentage wise you are so not as many jumps and they may stay bigger). Most of the time though it’s not even really about “testing” but building in training so even at higher reps I’d keep building at same reps and accept a little less top set for the day because the goal stimulus is being achieved with my builds (again goal and intent dependent).