Our practice is to use 10% of drawing nominal intensity. Using the 10% of drawing minimum intensity is doable as well. The danger there is having less removal amount available. The key is to pick one or the other for planning purposes, and stick with it. To use the actual intensity peened on the part, day to day, will introduce too much variation in the process. If hole is to be drilled/bored undersized prior to peening, an undersized hole diameter must be determined, so an intensity that the 10% rule is based must be selected. The removal amount is applied to the actual measured hole diameter after shotpeen. The trick is to hone to somewhere inside final hole tolerance, not remove too much material, and get to required finish, if required. Unfortunately, some trial and error happen for close tolerance holes